Gettin' Green, Gettin' Busy
Check out these tips on how to have a more environmentally-friendly sex life. Although I'm not sure that "showering together" is a good suggestion-- in my experience (prior to my virginity pledges) showering with someone else inevitably led to us spending more time under the water.
Still, it wouldn't have dawned on me to use rechargable sex toys or bamboo sheets-- actually, have any Incerters used bamboo sheets? The very suggestion sounds uncomfortable, but this article makes it sound quite nice.