Funny joke. But yeah, the creation, distribution, and disposal are not free - even if they are created from trees. Using two sheets isn't a big deal, but why use double what you need?

Anyway, I'm not trying to say we need to be super-frugal with our paper towels. I'm really talking about people who just keep grabbing more and more of them until their hands are dry. I'm sure we've all seen bins overflowing with barely-used paper towels. We don't need that.