Perhaps you have never walked into a store and had trouble making a decision about what brand of a product to buy. That’s probably because you have not been to the anti-wrinkle section. There are virtually millions of those things, and the fact that lots of them work also makes the lines more difficult to decipher. But if you went there with a prescription, you would never have to worry about all that; you can just pick up the one you were sent to and be off with it. Then look in the mirror a few weeks down the line, and find that you are not quite the same person anymore: you are your own kid, sort of.