Everybody poops... and you can help
I came across (via Boingboing) a great charitable project that Poopreport.com (!) is running (!!), build toilets for schoolchildren in rural Uttar Pradesh, India. Does it get any better than that? I can't imagine how. They can build a latrine for $250. In the Heifer.org model, maybe you can afford a share of a toilet? Perhaps a tenth? Hop on over there and kick in a couple bucks.