Glenn Reynolds dumps on the idea of different colors for money. I liked the German money. This story shows actual bills colored like Monopoly money. It doesn't look or feel that way. Another thing I liked a lot was that different demoninations were different sizes, like our coins. Remember the last two dollar coins? They failed because they didn't feel like the old silver dollars. You're a lot less likely to mistake a five or ten for a one (it happens) for a one, if they are different sizes.