I don't drink much caffeine, maybe two or three sodas in a week. I prefer water. It's also good for helping me eat less candy.

Being self-employed, my sleep schedule isn't the greatest, but I'm far more productive when I have plenty of regular sleep on a fairly fixed schedule than when I stay up late one night and get up early the next morning. Regular exercise also helps.

Is caffeine spirituality? Maybe in a very flippant sense. I think it's just (false) laziness and improper diet habits, if it's a real need. (Plus, I don't really care for the taste of coffee.)