A clinic called SmoothMED is now running its own Botox accounting operation, where you can buy virtual units of Botox at a locked-in price. The idea is that you can get exactly the amount you need instead of paying by the area (which tends to cost more than the per-unit price). When you come in to the clinic for your next round, you just "withdraw" the desired number of units you've "banked." It's a pretty interesting idea and, if you're looking at things from a sheerly economic perspective, it makes sense. Sadly, you don't get a free toaster if you open an account. What do you think of the idea?