This is something I’ve been doing for a number of years now after an inspired moment in the mail room at school. I’m kind of surprised that no one else does this. Have you ever gotten a piece of junk-mail that comes with one of those “business reply envelopes” that require no postage? This could be a credit card offer, magazine subscription, etc. Here’s a tip. Next time you get one of these, tear up whatever junk is sent to you, cram it and whatever crap is within arm’s reach into the reply envelope, and toss it in the nearest mailbox. I’ve been mailing my trash away for years now, and it’s time more people joined in.