Laundry Stain Removal Chart from Martha Stewart...
Print out this great stain removal chart and hang it by your washing machine. I never knew half of these stain removal tips. Vinegar seems to be a popular remedy for many stains - who knew? Martha Stewart's accompanying article can be read here.
Or, see Real Simple's here - very similar with a few more stain types, and includes nonwashable instructions.
That list is wonderful