Being the geek I am, I usually stay up a minimum of 24 hours when I'm really interested or concentrated on a subject. Below, I'll point out what I do, for those that want to accomplish the feat.
- Sugar
Increase your sugar intake, not by sugary drinks though. Small candies (gummy worms, etc. )worked the best for me. Last thing you want to do is crash.
- Sleep
Get a good nights sleep the night before.
- Caffeine
If you must have caffeine, go for '5/6 hour energy' shots, or '6 hour energy' pills (which happen to be cheaper than the shots). Try to avoid sugary energy drinks (Monster especially). My energy drink of choice is the almighty Citrus BooKoo.