I'm not exactly Alekhine, but I find that very often being (moderately) drunk helps to achieve victories...
Very bad idea from my experience. I once lost almost 400 ELO points on a weekend bender.
Just lost 150 points last night alone but I had a blast!
Smoking = even if u smart, ur dumb in the fact you don't know smoking and that other thing that is like smoking is bad.
Alcohol: Fine, maybe you don't get addicted to it as much as I say, but prob about 60% chance u will, and I never take chances like these with such dangerous possibilities.
Smoking.....crack?
You know crack is whack and there all kinds of crack that doesn't have to be "smoked"