Make this day as
least different / extraordinary / surprising to your body as possible; that is: in these several weeks, make a habit of getting to bed and out of fed at the same time e.g. 00.00 to 8.30 or 22.30 to 7.00 if you are working, etc. This will help you fall asleep (especially if you are constantly worrying by nature as I am). OK, on test day, you may want to set the alarm clock for 2 hours later, but your body clock will wake you up earlier anyways.
Drink the coffee as early in the day as possible (to mitigate the diuretic effect) and stronger than usual (less water, more coffee) as we do in Europe =) (I actually prefer it the American way, but on test days - it's a different world)
If you really want to
overclock yourself - also have a cup of
green tea (leaves, not bags). Coffee + tea are extremely powerful together as tea contains substances which increase and prolong the effect of caffeine (never have this combination after noon
)
To jump-start your mind try to go over as much of your
error logs as possible + (only) several questions of each type if you have the time.
Light breakfast and lunch - in my case - boiled eggs, cucumber, green pepper, cheese, bread.
Arrive
early,
breathe and eat a
chocolate 15 minutes before you enter the testing room =)
Good luck, mate!