Stain Pre-treater

Pour a bottle of hydrogen peroxide in a spray bottle, add a few tablespoons of dish soap. Wala.

Note: I haven't tried this yet. I got it off a mommy web site yesterday, but with my experiences of peroxide working on old blood stains and dish soap on lots of stuff, it seems to make sense that it would work. It's a lot cheaper than Shout, too! :-) Oh, and the directions say that the coloring from the dish soap will fade in about 24 hours.