Do you want to get really good at something? You have to practice. Malcolm Gladwell said it takes something like 10000 hours of doing the same thing to master it, but maybe that's if you're trying to win the Tour de France or fly a plane. You start developing muscle memory - the unconscious movement used to perform a task - much earlier than that, probably under 200 hours. Of course, I'm no scientist or Malcolm Gladwell, sadly - but I can tell you a little something about my experience with muscle memory and bread baking.