Here's a service that does several things at once -- and we think you'll like all of them.

GreenDimes will reduce your junk mail (snail mail, not spam), help maintain your privacy, and plant trees on your behalf. Pretty smart, eh?

The service, which costs $4 a month, works like this: GreenDimes has access to both direct mailers and catalogue publishers and will contact them to get you off -- and keep you off -- their lists. If there are catalogues you want, you just let them know which ones those are. And every month, a tree will be planted for you through partnerships with American Forests, Sustainable Harvest International, or Trees for the Future.

Read the FAQ here.