Friday, January 27, 2012

The Time Value of Money Vs. The Money Value of Time



Last month I did some volunteer work that was equal parts selfless and clueless and which would have made an economist cry.
My daughter's school holds an annual book fair to raise money to buy library books and I volunteered to coordinate it this year. A local bookstore brings over crates of books and kids come in throughout the week to buy them. Proceeds are split between the bookstore and the library. Literacy is promoted. Everybody wins.
Well, sort of. Before I get into the "where did I go wrong?" handwringing, a few observations:
First, anyone who thinks kids don't read anymore should drop by an elementary school book fair. This particular event was held at a pretty typical urban public school and the kids went crazy for the books. Not just the new Wimpy Kid book, but all sorts of books: Arts and crafts books, books about the scariest and most disgusting things on earth, graphic novels, picture books, and the perennial favorite of kids everywhere, the Guinness Book of World Records. After the book fair was over, kids kept stopping me in the hall to say, "I wish the book fair would go forever." (I did remind them that they can get library books for free.)
Second, kids do not understand sales tax. I know, why should they? But man, I saw a lot of steaming brows when I had to explain that you can't buy a $10 book for $10. Actually, come to think of it, I grew up in Oregon and I don't understand sales tax, either.
Finally, having a little money in their backpacks brings out the best and the worst in kids. I saw kids very politely begging their friends for money. (This is against the rules, of course.) I also saw kids spontaneously offering their own money to friends to cover annoyances like sales tax or being two dollars short for Wimpy Kid.

The value of time

In short, the book fair is a big, fun lesson in literacy, generosity, fractions and decimals, all bound up. What could be so bad about that?
Here's the problem: I ended up taking almost the whole week off work, unpaid, to sit in the library selling books. I'm not complaining about that, though. Who wouldn't prefer to hang out with kids, reading books, instead of working?
Conservatively, however, I missed out on billing $600 worth of work; call it $450 after taxes. The book fair raised about $150 for the library. If I'd gone to work and just donated my paycheck, the library could have bought a lot more new books.
Even though I thought I knew better, I became the walking incarnation of the conclusion of a famous economics paper :
"The inherent ambiguity of the value of time promotes accommodation and rationalization and may explain the rather obvious observation that most people are a lot more willing to waste time than money."
To help me make sense of this, I called Laura Vanderkam, author of the time management book,  168 Hours , and the forthcoming personal finance book, which I highly recommend, All the Money in the World .
"It sounds like it was incredibly enjoyable for you, hanging out with your daughter and her friends and encouraging young people to read," says Vanderkam. "Those of us who write for a living certainly hope younger people will read in the future."
But what about the money?
"It doesn't have to be an either-or question, right?" she says. "Maybe there was a way you could have done both. Maybe you could have split the work with someone else and donated moremoney that you had earned during some of the other time."
Indeed, I rounded up a few volunteers, but not as many as I wanted, and I was too reluctant to delegate and let volunteers take over so I could cram in a little work.
The lessons in math and interpersonal relations, the "promotion of literacy"—these happy side effects of the book fair, are fuzzy and hard to put a price on. The value of getting new books for a library that desperately needs them is hard to dispute.
So, I put it to Vanderkam bluntly: Next year, if the responsibility falls to me, shouldn't I cancel the book fair and promise to donate a week's pay to the library instead?
"Probably," she agreed. "When trading partners specialize in what they do best, it produces the most economic efficiency. When people focus on what they do best, that produces more efficiency, too."
(This, of course, raises another question: If I can inveigle someone else into running the book fair next year, do I still have to donate my paycheck? I do? Yeah, that's what I thought.)

On the bridge

Until the other day, I'd filed the book fair episode into the capacious lobe of my brain reserved for salting away dumb mistakes and trying to forget about them. I thought of it again while I was driving across the 520 floating bridge connecting Seattle with Bellevue and the rest of the metro area eastside.
This bridge has been a nonstop traffic jam, even on weekends, for as long as I can remember. I don't cross it very often, but I always dread it when I do. A couple of weeks ago, however, the state slapped a toll on the bridge to help pay for a replacement bridge.
Now the crossing is a delight. The Seattle Times reports that on one section of the bridge, the average speed jumped from 19mph to 65mph. That's tooth-grindingly slow to illegally fast. The traffic jam has moved to the other bridge.
Is it better to pay $5 to cross the free-flowing bridge or drive out of your way to take the non-toll bridge, which may or may not be congested? Technology to the rescue: A local developer has created a free smartphone app that tells you the current toll on the toll bridge (it varies throughout the day), the estimated crossing timefor each bridge and the cost in gas.
You still have to decide how you value your time. Are you economically rational or a time-wasting stereotype like me?
Matthew Amster-Burton is a personal finance columnist at Mint.com. Find him on Twitter@Mint_Mamster .

Revive your Dried Sharpie Marker



I made a great big batch of Chili the other day and preserved it in my pressure canner.  That is what I did, because I do things like that.
Then, I went to an office supply store to buy some labels for my newly jarred chili.  This is what I did, because I do things like that.
While at the office supply store, I walked right past the aisle filled with Sharpies and thought to myself "Huh, my Sharpie's all dried out.  I should probably buy another one, 'cause I'll need it to write my labels." And then it seemed like the biggest ordeal and expense in the world to buy a Sharpie, so I left the store without one even though I knew the one I had at home was dried up and I really needed to buy one.  That is what I did, because I do things like that.  All the time.
So when I got home I checked to see if the Sharpie Fairy had visited me, and indeed she had not.  My Sharpie was still as dried up as it was the last time I tried to use it.  It was not self-lubricating as I had hoped.
So I did this ….

Checked one last time to see if my Sharpie tip was still dried out.

(it's usually the tip that's dried out, not the ink that's gone)

It was.  Dried out I mean.

Grabbed a bottle of Rubbing Alcohol.

Poured some into the cap.

Dipped the tip of the Sharpie into the cap filled with Rubbing Alcohol.

I left it  until I could see a bit of ink swirling out.

I put the cap back on the Sharpie and left it for 15 minutes.

Pulled my cap off and tried again.

That is what I did, because I do things like that.  All the time.
This trick will not revive allllll markers. Sometimes, some things are just too far gone to be revived with a little bit of alcohol.
(For a non permanent marker do the same thing but use water)

Set Up Timed Playlists and Non-Intrusive Distractions to Stay Focused and Productive at Work

January 26, 2012 10:56:16 PM

Set Up Timed Playlists and Non-Intrusive Distractions to Stay Focused and Productive at Work

lifehacker.com

 

In order to get your best work done, you need to buckle down, eliminate as many distractions as possible, and focus on each task at a time as much as possible. However, few of us have the luxury to wall ourselves off from the world all day. We have meetings, coworkers, phone calls, lunch breaks, and other things we don't want to forget. Here are some tips to isolate yourself so you can work, but set up some non-intrusive alerts and reminders so you don't forget to come out and join the rest of the world from time to time.

Step One: Set Up Your Cone of Silence

The first thing to do is to set up your personal zone of isolation. Once upon a time, you could just close your office door to focus and get away from the buzz of the workplace, but few of us have offices these days. If you can, invest in a good pair of noise-canceling headphones that can help you block out the chatter of your cube-neighbor or the sounds of your coworkers talking. I've found a good pair of active noise canceling headphones are your best friend when you work in an office with "open-style" cubicles and boisterous colleagues. Check out our guide to choosing the perfect headphones if you need help picking a pair. Rearranging your desk so you can focus on your monitor and not the goings-on around you can help as well.

Sometimes headphones don't cut it, though, and you need real isolation to get your work done. If it's crunch time and you need to focus, consider squatting on an open conference room in your office for a while, or finding a vacant office somewhere in the building that you can sit in for a while. You may not be able to do this for days at a time, but some of my most productive days were days where I blocked off a rarely-used conference room and sat inside for the bulk of the day, away from my desk and the distractions that came with it. If your home is a distraction-free environment (and not everyone's is) consider working from home when you really need to focus and churn out some work as well.

Step Two: Set Up Non-Intrusive, Timed Reminders to Get Up and Out

Once you have a distraction-free (or at least, distraction-minimized) work environment, either at your desk wearing headphones or holed up in a conference room somewhere, now it's time to make sure you don't forget about the real world. Earlier this week we discussed how setting a morning playlist can help you leave home on time . You can do the same thing for your focused work sessions—if you want to stay in the conference room for an hour with no distractions, build a playlist that's exactly an hour long of your favorite tunes, and start it. Don't forget to schedule your working time on your calendar so coworkers don't assume you're free and try to book you for a meeting or come to interrupt you while you're working. When your playlist starts to wind down, you know it's time to pack up and go grab a bite to eat, or at the very least take a break.

Another helpful tactic that offers a natural, organic cue that it may be time to end your isolation and rejoin the real world is to keep a water bottle handy with just the right amount of water in it that you'll need before you need to refill it. This is an adaptation on a hack we showed you on this episode of the Lifehacker Show , where you mark the water bottle with how much water you'll drink every few hours as a reminder to hydrate yourself. In this case, by making note that you need to refill the bottle when you drink down to a certain point, you have a reminder to get up and take a break. If you keep drinking water, nature may call too, which is as good a reminder as any. For shorter bursts of work, try filling up the teapot for a cup of tea—way more water than you may need—and turning the heat on low. By the time the whole pot is boiling, it's a good bet you'll need the break you get by getting up and making your tea.

These are just a few examples, but the goal is to come up with simple but effective cues that assert themselves and need to be resolved at times that are just right for you to either wrap up a timed work session and grab lunch, or take a break before starting the next session.

Step Three: Set Up a Few More-Assertive, Fall-Back Alerts, In Case They're Needed

If these techniques sound familiar, they should. They're something of a natural application of the Pomodoro productivity technique , a method we've mentioned before, especially in our guide to building your own productivity technique by remixing the best . If natural cues aren't enough to make you get up and take a break, you may need something a little more aggressive, like actual timers and alerts. Don't fear timers and alarms—as much as they can create some pressure to finish working, they also serve as "containment units" for your work, and can help keep you sane and productive .

If you want a better reminder that it's time for a break than your water is running low or your playlist is running out, a good old fashioned desktop alert can make all the difference. For example, an upcoming calendar appointment or a planned meeting that coincides with the end of your scheduled work session can serve as a great reminder. We've discussed several alarm tools here at Lifehacker, but previously mentionedWatchMe is a great tool for keeping track of multiple timers at once. For something more geared towards breaks, Breaker is another app we've mentioned that can help. Mac users can try Coffee Break for a reminder to get up at certain times.

Photo by mlpeixoto .

Ultimately, single-tasking and making sure you're isolated from the distractions that make you less productive doesn't mean you have to stick your head in the sand and forget the rest of the world exists. If you plan for it, you can come up for air on a regular basis, make your next meeting, remember to take lunch, and still network with your coworkers without anyone knowing the secret to your incredible productivity.

Infographic: SOPA & PIPA Explained



We've had a lot of discussion about SOPA and PIPA recently, the bills that want to cripple the internet , but there are still plenty of people who aren't clear on the issues. And although the bills have been shelved for now , similar threats (e.g., ACTA ) loom and it's wise to stay informed of the issues at stake. This infographic lays SOPA's and PIPA's legal and technical technical details out pretty clearly.
The graphic from Lumin Consulting covers the main issues and arguments against these bills, including mis-labeling of sites and potential for abuse, based on sources such as Reddit's technical examination of SOPA and Protect IP . The nice thing about infographics is when they're done well, they're easy to scan and read, and this one, as Search Engine Journal notes, is something even non-technical people may understand. So if you know someone who is still unclear about these bills, pass it along. Here's the full image (click to expand and or right-click to save to disk):

Thursday, January 26, 2012

Post Jailbreak: How To Reset Your iPhone's root Password

How To Change the iPhone's Root Password | iSource

How To Change The iPhone 's Default Admin Account Passwords:


On a Mac:
  • Find your iPhone 's IP address so that you know where you need to connect to.  To do this, go to the Settings app > WiFi > tap on the blue arrow to the right-hand side of the WiFi network you 're currently on (the one with a check next to it) > make a note of the IP Address entry listed there.
  • On many home WiFi networks the address will be something like 192.168.1.x " so we 'll use that in the command instructions below " remember to use your own IP address when doing this though.
  • Use the Terminal app or your favorite replacement for it (I use iTerm) and open a new window
  • Type this to connect as root to your iPhone: ssh root@192.168.1.x
  • You 'll be prompted for the root user 's current password.  Enter this: alpine
  • Type this to start on changing the password for the root user: passwd
  • Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
  • Once you have changed the root user 's password, type this to switch to the mobile user: login mobile
  • Type this to start the password change for this user: passwd
  • Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
  • Type this to end your remote session with the iPhone: exit
Done.
On a Windows PC
  • Find your iPhone 's IP address so that you know where you need to connect to.  To do this, go to the Settings app > WiFi > tap on the blue arrow to the right-hand side of the WiFi network you 're currently on (the one with a check next to it) > make a note of the IP Address entry listed there.
  • On many home WiFi networks the address will be something like 192.168.1.x " so we 'll use that in the command instructions below " remember to use your own IP address when doing this though.
  • Use Putty (free to download on the web) or your preferred app to make an ssh connection to the iPhone
  • Use 192.168.1.x (your iPhone 's IP address) as the host name or server name to connect to.  Choose ssh as the connection method, SFTP as the protocol, and 22 as the port number.
  • Use the username root to connect with and alpine as its password
  • When you have connected and have a terminal window open type this to start your password change for the root user: passwd
  • Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
  • Once you have changed the root user 's password, type this to switch to the mobile user: login mobile
  • Type this to start the password change for this user: passwd
  • Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
  • Type this to end your remote session with the iPhone: exit
  • Done.
    As you can see, these are easy and fast steps to take.  If you 're running your iPhone jailbroken and using the SSH service it 's very worthwhile to make these changes to the default passwords.  Even if you do not use SSH, keep in mind that other core iPhone services may have security holes and exploits in future " so the password change is a good idea all the way round.
    If you are using SSH, another good practice is to keep the service always toggled off except when you are using it for file transfers or similar activities, and to get in the habit of shutting it off as soon as you 're finished working with it.  The easiest way to do this is to use the excellent SBSettings app, to have a quick one-tap toggle on/off for SSH and other key services.

Wednesday, January 25, 2012

Make Better Quality Decisions with the Help of This Spreadsheet


The best way to tackle a problem—whether it's something big like what car to buy or as small as where to eat out—is to evaluate the possible solutions. This Excel spreadsheet helps weigh all your options and find the best choice.
To use the decision making tool, enter up to five values or qualities you consider important about the decision in question and then rank them. In the example provided, when looking for a vacation spot, you might want to go somewhere warm, relaxing, inexpensive, and nearby. Then list the possible options (e.g., Florida, Bermuda) and score them against each quality. The spreadsheet will automatically calculate a final tally and show you the most desirable choice.
Whether or not you geek out like I do over charts and pros and cons lists, this tool from Idea Sandbox might help make tough decisions a little bit easier.
Idea Sandbox: Decision Making Tool | Idea Sandbox

How to Build a Hack-Proof Password System with LastPass

 It seems like every day there's news that a new site or service has been hacked. The intruders make off with usernames and passwords, and even if they're encrypted the service forces users to change them. This week it was DreamHost , and last week it was Zappos .
We're big fans of LastPass , a cross-platform password manager that helps you create and manage secure, unique passwords for every site, but the point of failure is obvious: What happens if someone gets your master password? Here's how you can beef up LastPass by turning a USB flash drive into a key you have to plug in to your computer before you can access your passwords. This way, the next time a service you use has been hacked—even if it's LastPass—you won't worry.
If you're not already using LastPass to generate, maintain, and manage different and unique strong passwords for every site and service you use on the web, it's time to get started . The beauty of LastPass is that it's available for Mac, Windows, Linux, and even mobile devices, and you can choose and remember one strong password and then use that password to manage and access all of your other logins and services on the web. Still, LastPass keeps all of your passwords in the cloud, and while they're as secure as they possibly could be, if someone gets a hold of your LastPass password, you're pretty much screwed, right? Not if you have a spare USB drive with Sesame, a utility that turns your USB key into an actual key needed to unlock your LastPass vault. Once installed and set up, you'll need both your LastPass master password and your key plugged into your Mac, Windows, or Linux PC in order to unlock your vault and access your saved passwords.

Step One: Get LastPass and Set It Up

The first thing you'll need is LastPass, and a Premium Account . It's $12/year, but that's a small price to pay for password security. LastPass is our favorite any-browser, any-OS password solution , and if you haven't tried it yet, The How-To Geek has a great guide to getting started with it , and we have a more advanced guide to mastering your passwords and increasing your personal security with it.

Step Two: Grab a USB Flash Drive and Install Sesame

The next thing you'll need is a USB flash drive. Building on the principle that most secure password is the one you can't remember , your second authentication factor will be a device, not a passkey or code. LastPass offers a tool called Sesame that can turn any USB drive into a second authentication method to use when you need access to your LastPass vault. This way, even if someone obtains your LastPass password, it's useless without the USB drive, and vice versa.
You already know how to secure your personal belongings, like your wallet or keys, so a USB flash drive like the LaCie key-shaped USB drives that fit right on your keychain shouldn't be a problem to keep safe and secure.
Once you have Sesame downloaded and extracted to your USB drive, here's how to set it up:
  1. Run the Sesame utility on your USB drive, and log in with your LastPass credentials.
  2. Sesame will email you an activation code, required to enable two-factor authentication on your account.
  3. Click the link in your activation email to activate Sesame. (Note: The activation code is only good for 10 minutes.)
  4. After you've activated Sesame, you'll have to log in with both a Sesame passkey and your LastPass credentials whenever you want to access your password vault (more on this in the next section.)

Step Three: Use Your Key to Access Your Password Vault

Going forward, you'll need your USB drive any time you want to access your Lastpass vault, like when a service or site you have an account with gets hacked and you need to change the password, or you reset a password for one of those services.
To access your LastPass vault once you have Sesame enabled, you have two options.
  • Option One :
    1. Visit LastPass in your browser, and log in with your LastPass credentials.
    2. When you're prompted for a Sesame one-time token, pop in your USB key and run Sesame to generate your token and copy it to the clipboard.
    3. Paste the token into the authentication screen, and click OK to access your password vault.
  • Option Two :
    1. Insert your USB key and run Sesame.
    2. Check the box for "Launch Browser," and click the "Generate One Time Password" button.
    3. Sesame will generate your token, open your browser and go to LastPass, and pass the token for you. Type in your master password, and click OK to access your vault.
Don't worry, if you lose your Sesame USB key, the key is useless without your LastPass email address and master password. You can always visit your LastPass vault, click the link in the authentication screen to tell LastPass that you no longer have your Sesame device, and confirm via email that you want to deactivate Sesame. Then, you can grab another USB key, reinstall Sesame, re-activate it, and be on your way.

Step Four: Audit Your Passwords and Strengthen Security

Now that your LastPass vault is well protected with two-factor authentication, it's time to tune up the passwords that LastPass is protecting. After all, LastPass won't do you much good if your Amazon password is "password" or if your Google account password is "123456." We've discussed how you can use LastPass to audit and update your passwords , and even how you can make those passwords more secure and easy to use . If you're taking steps to make your LastPass account as hack-proof as possible, you may as well go the extra mile and make your individual passwords as strong as possible as well.
As we mentioned, Sesame is a great tool to make sure that even if LastPass gets hacked, or someone gets a hold of your LastPass master password, they don't have carte-blanche to log in to your LastPass account and grab your credentials to everything else on the web. It doesn't, however, automatically add a second authentication method for all of those services you use, so it's important to make sure those passwords are strong.
Photo by Juan J. Martinez .

Step Five: Consider Secondary Authentication for Other Web Services

In addition to beefing up your LastPass account, you might want to consider activating two-factor authentication for any other web services where it's available. For example, we've discussed how you can—and should—set up two-factor authentication for your Google account , and how you can do the same for your Facebook account as well. Many banks and financial institutions are coming around to offering two-factor authentication before you can get at your financial statements or move your money around, so contact your bank or investment firm to see if that added security is available to you.

Step Six: Stay Vigilent

If you've been following along, you should now have LastPass set up with two-factor authentication for your vault, you've audited your passwords and made them stronger and more difficult to crack, and you've activated multi-factor authentication on the services where it's available to you. That all doesn't mean that you can relax and forget about security—you'll still need to quickly change your passwords for any sites or services you use that get hacked, and you'll still need to use different strong passwords for each site or service you use. No password mechanism, web service, or authentication scheme is completely hack-proof. That said, this should help you breathe a little easier.

Alternatives to Your Thumb Drive Key

LastPass provides more than one way to set up two-factor authentication, so if you don't like this specific method, you have other options. For starters, you can purchasea Yubikey from Yubico for about $25, and set up Yubikey authentication on your LastPass account for the same effect. You can also use LastPass with Google Authenticator and turn your smartphone into the "key" that—along with your master password—unlocks your LastPass vault. If you're not interested in paying for a LastPass premium account, consider grid multifactor authentication for your LastPass account, a technique we've shown you that you can apply to other services

What Your Favorite Blog Says About You


Gawker :  You tell your friends jokes about their ethnicities and sexual orientations. They grin and say "Bitch!" and pretend to smack you.
Huffington Post :  Most of your pleasures are guilty pleasures.
Daily Kos :  You own a "Disappearing Civil Liberties" mug.
Laughing Squid :  You own an unconventional bicycle.
BuzzFeed :  Your giggle is too high-pitched.
Gizmodo :  You correct people in conversations that you overhear in public.
Lifehacker : You know where your pens are.
Kotaku :  Your girlfriend says, "At least when you read a book, you come away having learned something."
Mashable :  Your Facebook feed is all "likes" of news articles you've read.
TechCrunch :  You "network".
Jezebel :  You convinced your mom to leave your dad, and she's never been happier.
The Awl :  You aren't snotty about keeping books in good condition, you acknowledge that dogears and scribbled notes are healthy, but you have a few special editions you'd only lend out to a very close friend.
Deadspin :  You're going to kickpunch the next asshole who says "I only watch it for the commercials" as if this is some mark of intelligence.
Boing Boing :  You've voted for a satirical political candidate.
[EXPANDED version since Boing Boing linked to us : Boing Boing: You are someone's favorite uncle who taught them how to build their own toys. You are someone's "cool" aunt who sends the amazing Birthday gifts from far-off lands. You know swear words in fifteen languages. You have built seven completely different and contest-winning party costumes around a single vintage fez.]
Kottke.org :  You read all the liner notes, even if you bought the album as mp3s.
Daring Fireball :  You know three ways to tell Helvetica from Arial.
The Hairpin :  You got Maira Kalman to draw a cartoon in your book at a reading.
[EXPANSION cause The Hairpin linked us ! The Hairpin:  You get the importance of hand towels. A lot of other shit in your life is out of control, but you are not gonna make anyone visit your home and dry their hands on your bath towel, like a peasant. You have an uncanny ability to guess the correct time of day within a five-minute range. It's a shame "spunky" is such a gross little word because it used to be a good one and it would be helpful right now.]
Think Progress :  You can communicate multiple levels of disgust with your snorts.
Perez Hilton :  You were bullied in high school.
The Gloss : You have a purse dog.
PopSugar : You feel comforted by laughtracks.
Neatorama : You've bought food from ThinkGeek.
Serious Eats :  You've debated about Five Guys vs. In 'n' Out.
TreeHugger :  You feel bad about how long you take in the shower.
Roger Ebert :  You like discovering cheese-and-fruit pairings.
Geekosystem :  You used to steal Reddit jokes for your Facebook feed, but your friends caught you.
Autoblog :  You use pomade.
Vulture :  You have theater tickets.
Stereogum :  You have a working definition of "authentic".
Brooklyn Vegan :  You have a working definition of "facon".
Videogum : You've openly scoffed at a celebrity in person.
Hipster Runoff :  Your friends squint at you a lot after you say things.
Consumerist :  You have some sort of fact sheet, like the Bill of Rights or some measurement conversions, in your wallet.
Cinematical :  You refuse to acknowledge that AOL shut this blog down. Jesus, live in the present.
TubeFilter :  You're surprised how much you say "content".
ReadWriteWeb :  You are the only person who actually called your representative about SOPA.
Art Fag City : You've fantasized about throwing poop onto something expensive that you actually like, just for the filthy thrill and the knowledge that this will make it worth more to someone foolish.
PostSecret :  You try so hard to act mysterious that everyone knows this about you.
I'm Remembering :  You own a stuffed animal.
The Frogman :  You can't listen to a Muppets song without singing along.
The Daily What : You like to borrow your friends' pets.
Slacktory :  You keep tripping over your own feet.