Hand washing.

I'm not a hygienist, but I know that washing your hands is a good thing, especially when you deal with (erm) most bodily fluids. Apparently, my fellow Americans (mostly men) have decreasing rates of hand washing. Remember: wash yer hands! (After all, in this country, we have decently clean water, almost every store sells some sort of hand cleaning agent, and so you (and me, my fellow Americans) have little excuse to wash up.