There are many things one can do to keep the feet dry. Start by limiting the amount of time that you wear shoes made out of synthetic materials, which don’t allow air to circulate as well as natural materials like leather or canvas. The same goes for socks — try to wear socks made out of wool, cotton, hemp or bamboo. Always put on clean ones, and consider changing them once during the day. You should avoid wearing the same pair of shoes all the time, too. When you get home and take off your shoes, don’t just throw them in your closet — leave them out overnight to dry, and wash them occasionally if possible. Open-toed shoes and sandals let your feet breathe and will actually cut down on odor when your feet are clean, dry and cared-for. Antibacterial, odor-absorbing foot powders, sprays and shoe inserts can also help to keep your shoes and feet dry and odor-free. Finally, you can try using the same antiperspirant that you use on your underarms.