Everyone is different so it seems different things work for them. For myself (a smoker for over 20 years and I suffer from severe depression), I went from full flavor cigarettes to lites. Then I kept track of exactly how much I smoked. After that, I cut out ONE cigarette from that amount every 3 days. Once I got down to 2 or 3 cigarettes per day most of the desire was gone and a couple of days after that I quit. My body just got used to less and less nicotine until it just didn't matter anymore. The whole thing took me about 60 days.

Good luck with whatever method you decide to use to quit...it is definitely worth it.