In Brazil there's a movement afoot encouraging households to pee in the shower. They say it can reduce your water consumption by the equivalent of one flush a day, or more than a thousand gallons of water each year.
What else is there to say, really? It saves water. And for your enjoyment--one of my favorite enviro-videos ever. The television ad campaign:
“I think the best compliment I can give is not to say how much your programs have taught me (a ton), but how much Marketplace has motivated me to go out and teach myself.” – Michael in Arlington, VABEFORE YOU GO