The best way to quit smoking.. (Yeah, I've posted this like twice before)
Pick three days that you are off of work and can be an asshole to everyone. Warn said people. And just QUIT. Sleep, eat, sleeeep, sleep, pee, sleep... Avoid human contact as much as possible, because you are likely to tear heads off.
And for the long run, always keep a pack of cigs on-hand. If you have cigarettes and don't want them, that is ok.. But if you want a cigarette and don't have any anywere, you go into that crack-head-rage fit and start looking all over for a smoke. You know exactly what I'm talking about.
I kept my pack for about two years before I threw it away..
Mind over matter. Are you weaker than that pack of cigs? Do they control you? Do you do as they wish? Or do you control yourself?