I'll write about Vietnam soon, but wanted to share a link. One of the t-shirts I bought in Vietnam had some tape residue from the "size" sticker (which shows "M M M M M M" for medium). I just found a great little PDF from Cornell University called "Removing Stains at Home", which provides solutions for removing 250 types of stains. It's an old publication (2002), but new to me. Might be useful for those of you having babies right about now. Of course, it just depends on whether you can get your hands on the materials they state.

Removing Stains at Home