If you run, walk, or bike your feet certainly pay the price. Often neglected, your feet could stand to be shown a little love. I recommend investing in a pumice stone ($4). Next time you take a shower, spend some time tidying up your wet feet with your new pumice stone. Pay special attention to your rough heels. After you hop out of the shower, moisturize your tootsies. Not only will they feel soft and smooth, but getting rid of dead skins cells will help prevent fissures (cracking) on the heels, which can lead to painful infection (definitely not something you want to deal with if you're an athlete). It only takes a few minutes and it makes a huge difference.