GreenDimes

A friend of mine pointed me to GreenDimes.com. The $3/month subscription service helps get you off (and keep you off) of junk-mail lists - which saves paper, eliminates clutter in your home, and reduces the chances of identity theft. The company also plants a tree for you every month. I just signed up so I can't vouch for the service yet. But it seems intriguing and potentially quite valuable.