This is a good idea for all kinds of reasons.

Found this on I Believe in Advertising.

It's a "business card" for an environmental consultant. Or, as the site says, maybe it's more of a communications piece than a card.

If you don't feel like enlarging this, here's what it is. Rather than print up some business cards, this guy has a rubber stamp that he can stamp on any damn thing.

A little hard to carry around in your wallet, but it sure does make a point.

By the Fischer agency in Lisbon, Portugal.