Shaving, flossing, plucking your eyebrows: get it all done in the shower. Why not? (OK, saving water is a good reason not to.) But how do you keep that mirror clear so you can see what you're doing?

A foggy mirror after showering is a real bother. You don't want to use your towel to wipe away the steam, and sometimes opening a window or door lets all that wonderfully warm air out, leaving you ...