There's been posts about daily habits of other accomplished persons (not necessarily programmers), and the conclusion from that discussion was that although these techniques work for them, they would not really apply in general. For example, some would have a glass of wine before starting work on a project, whereas that would put me to sleep. Some athletes eat a big steak dinner before a game, while with others it would hamper their performance.

My take on it, is that people that are good at what they do are good because they are good, not because of any rituals.