Do you swear by hand sanitizer? Avoid sharing drinks at restaurants? Wash your hands for the full 20 seconds after every meal? Or do you simply want to improve your personal hygiene? This pocket guide will offer everything you need to know about germs, where they live, how they get there, and how you can eliminate or avoid them. Here at last is the scoop on the relative dirtiness of cash, children's toys, hand towels, computer keyboards, movie theaters, and public toilets.