This story on PZ Myer's blog today, about an Indian man who invented a way to make disposable sanitary napkins affordable to poor women, is truly inspiring. I totally love that he recognized what a struggle maintaining menstrual hygiene was for the women in his village.
We take disposable tampons and napkins for granted, but in fact they're a fairly recent development. I remember my grandmother describing how the women in her family had a special bucket in which to soak blood-stained rags in preparation for Wash Day. It was hidden in a dark corner of the basement, a shameful and disgusting receptacle, vigilantly kept from the eyes of children and menfolk.