It's changed over the years... When I was full time street artist: Nothing. When I was drinking night before: Coffee, cigarette, painkillers. But now that I don't drink, have retired from everything, and have banned anything which contains parts of slaughtered and tortured creatures from the house: I take a large amount of wholemeal cereals witch soya milk, or with anything else made from plants, or I go out and just eat anything I begin to fancy, mostly then it turns into a dinner rather.