<p>Best bet is this:
Breakfast - 3 eggs, whole weat toast, yogurt, fruit, no more than 200 mL juice, 100mg caffeine pill</p>
<p>In the car - Short espresso (if necessary)
Just before SAT - Red bull
During Break - Red bull #2</p>
<p>Thats what I do, but I drinks tons of coffee. The key is to limit your fluid intake so you dont always have to P. The first red bull hits me just before the 1st break, and the second redbull gets me to the final break</p>