One of the most annoying cleaning tasks in the house is cleaning water stains and soap scum off of shower doors with a squeegee every time you shower. However, if you use a little logic and realize that your shower doors are glass, just like your car windows, the same glass treatment spray can work on both.
The Cleanly Housekeeper says he's been using Rain-X on his shower doors—originally meant for windshields—and has had nothing but good results. "The shower spray beads up and runs down, so much less water stays and dries on the glass door," he says. You'll have to reapply the coating every few weeks or so, but that's a whole lot less work than wiping down your doors after a shower.