Memory is such a strange thing. I could go for years without typing, sit down at a typewriter and instantly be able to type. The same for riding a bicycle, playing piano or shifting gears in a car. Yes, I know it has something to do with physical activity forming neural pathways in the brain, but explain to me why I can remember how to type, but except for "qwerty" I would be hard pressed to tell you where keys are on a standard keyboard. Outside of "a" and "s" I'd really have to think about it and even then I'm not sure I could tell you where everything is, but my fingers know. So strange.