Mark sent me this freakonomics blog post today on a "Gluttony Tax."

In short - you pay a one price all-you-can-consume and then have to pay for whatever you have left over. For example, you go to a buffet for $19.99...if you still have a spring roll left on your plate that you don't eat - you pay an extra $1 for it.

I actually think this is a great idea. Freakonomics thinks it is great in the age of waste. I think it is great because the company doesn't waste money.