YMMV: I was up to a pack a day when I quit. I begun by realizing my habits. About once an hour I'd get up and go outside for a smoke. When I decided to quit (

YMMV: I was up to a pack a day when I quit. I begun by realizing my habits. About once an hour I'd get up and go outside for a smoke. When I decided to quit (the first time) all I did was delay to my next "appointment". In other words - get to work at 7am, 8am comes around and you want to go smoke. At this point I would squirm, fidget and think about the smoke, but not actually do it until 9am. Continue this process through out the day. I also kept my associative smokes (getting in the car, finishing a beer, having a coffee etc) in tact at this point. These served as a familiar refuge from the shock I was going through during the day. I did this for a week or two (until it became easy), then applied the same process (recursion!) to my current habits. Somewhere along the line, when I felt comfortable I took out some of the associatives (only have a smoke when I drive to work, not coming home). I kept repeating this until I was down to 2 - 3 a day, then one day (without prior planing) said I was going to make it the whole day. I don't think it worked, but I kept trying every once in a while. The first time I used this process I quit for a few months. The second (and current time) has been about 8. I still want to smoke from time to time. Once again - YMMV but I didn't really WANT to quit. I liked smoking, but my unparalleled stubbornness helped me get through.