Ok the best way to quit anything is completely destroy the source of that addiction. In this case, literally burn your ciggarettes in the fireplace, or whatever, and find something else to curb your addiction, small things like candy or the like can help. Also, throw away your lighter, unless you are a pyromaniac or something....
It's like when I was addicted to playing WoW. I deleted all my characters and gave my account away to someone else. I also deleted the game, as well as any bookmarks for the internet sites I go to often.
To quit smoking, or any addiction, simply FORCE yourself to not do it, that is to say, a man chained to the floor can not reach the ceiling.
That is my advise on it. I smoke too, but, for some genetic reason, I don't get addicted. I can simply not smoke if I want to. I smoke time to time for the buzzy feeling like a good drink from time to time. It's probably something like my brain cells don't accept nicotine and therefore get addicted, anyways, I think that if you can't put your mind to it, then, you MUST force yourself to not do it.