It's Easy Being Green

Matt Damon received a life-changing gift last holiday season. A friend signed him up for Greendimes, an organization that seeks to cut down on junk mail. Not only does junk mail clog up your mailbox, it also requires an estimated 100 million trees and 20 billion gallons of water every year.

For about a dime a day, Greendimes will stop 70 to 90 percent of the junk mail you're now getting. They also plant a tree a month for every member. "So not only are you saving trees from being cut down, you're actually participating in replanting trees," Matt says. "We need our trees, obviously, because they do everything from remove air pollution and sequester carbon, they filter our water, they provide wildlife with homes."

Matt was so impressed with Greendimes that he's now a board member for the company. "Do something wonderful for your planet and do something wonderful for your life. Get rid of this junk," he says.