There is nothing Sir too little for so little a creature as man. It is by studying little things that we attain the great art of having as little misery and as much happiness as possible.
If I'm playing in the morning I'll get some carbs early: porridge with chopped banana. If I'm playing in the afternoon I'll start with less carbs and have some eggs and fruit for breakfast then a light lunch about 90 minutes before I play so I don't feel sluggish or full.