i smoked 1 pack a day, 2 packs on weekends (drunk). when i tried to quit cold turkey i woke up in the middle of the night vomiting, so i decided i'd ween myself off a little slower. (i was really low bodyweight, probly why i reacted so violently). i cut down like this: 15 for 3 days, 10 for 3 days, 5 for 3 days, 4, 3, 2, 1 and none on new years night. i got drunk as shit just to prove to myself i could go one night without a cigarette. first 3 weeks to a month was pretty bad....
i also had a lot of pot while i was quitting and i'd roll up a pin joint and smoke it like a cigarette when i really wanted one. that probably helped a little.
i just had to make a decision not to smoke no matter what for one month. after a month your body forms a habit with pretty much anything you do regularly... but my brain played tricks on me like a mofo. for about six months i would have dreams that i smoked that were really realistic and i'd wake up thinking i f'd up... then i'd realize.
but i was coughing up tar and blood all the time. i saw that it would kill me. once you see that a drug will be the death of you it makes it a little easier to quit. and most smokers say "oh i know it will kill me" but they dont KNOW it will kill them. once i saw that it became something i had to do, not that i wanted to do.
can i just say how worth it it was for me? i can breathe (i didnt realize i couldnt breathe before!), i can TASTE my food, i can actually DEAL with my stress w/o a cigarette, girls dont think i smell like shit...
my girlfriend smokes... wish i could convince her to quit... oh well, you just have to want it yourself. nobody can quit for you.