I started smoking when I was eleven, gave up when I was 30 I used to smoke over 40 a day. I just got up one morning and decided thats it no more. This is what worked for me.
Change your routine
My meal was never finished unless I had smoked a cigerette, so what I did was after my meal I kept going, I didnt sit down and relax, I kept moving until it was time for bed.
I always used to smoke alot when I was around my friends out drinking, I gave up drinking and didnt go out with my friends for a while, we went to the Gym, to see a movie, swimming that kind of thing.
I could never answer the phone without lighting a cigerette up first, I stopped answering the phone and had someone else in the family answer it, it was never for me anyhow.
Just keep busy, do things out of your normal routine, very soon you get your sense of smell back, then your taste. If you smoked in the house, take down pictures on the wall and see the difference, then paint the walls.
Dont let others smoke around you, if they visit tell them its a smoke free zone and that includes the garage and the garden.
I wish you luck, why dont you start something on here, to let us know how your going on so we can support you at times when your about to give in, I am sure there is always someone on line to chat to.
Good Luck and Good health.