3 years plus for me...

it was only after about 2 solid years quitting that i TRULY saw the light.

till then i still had friends who smoked and i got jealous everytime we were drinking and they could light up. now, the ***** smells terrible and no matter how drunk or high i am i have ZERO desire to smoke a ciggie... and i used to be a hardcore addict.

so quit! it's good for you and if you tough it out long enough, no matter how hooked you were, it will seem stupid and smell horrible.