You have to look after your feet, keep them clean and healthy. You should wash them every night in warm, salted water before going to bed.
Good advice, actually. Not only does salt help soften and detoxify skin, but the warm soak will help you unwind, too. Wondering what else you can do with this easy-to-find mineral? Check out some more ideas here, along with a DIY on making an aromatic salt footbath with alfalfa and mint.