I love Stacker 3... it's like stronger version of Stacker 2 ... caffein & most important! Ephedrine...

Eat 2 or three grapefruits to get the shakes down and you are good for 6 - 7 hours of hacking like crazy. I manage to IRC, proggram, install things in 7- 10 windows on 4 desktops on my debian box. You can definatelly develop tolerance but I don't do it every day only if I have time. Coffe and cigs are a must to but only for short breaks. Besides that I eat healthy. Salads protein, lot's fiber, fruit and vegs. Drink a lot of water. Keeps me sharp.

As far as alcohol... hmmm... I don't drink anymore, because if I do I can't stop ... for days....

bad i know but that why i don't do it... It makes you sloppy after a while.

BUT gotta be up, up , up