I quit smoking in November last year so I consider this month to be my non-smoking birthday month.

I read Allan Carr's "The Easy way to stop smoking" book in about September last year and stopped for about 2 weeks, but then started again for some or other reason I forget.
Until November, every time I lit up I thought about what I had learned in the book and I felt really stupid.
Eventually I just stopped and I haven't looked back since.
The first 3 days were bad (withdrawls) and after that it was as easy as breathing.

I actually can't believe how easy it has been. I have not been tempted once, I have not had cravings once (after the withdrawls were over) and I know I will never, ever smoke again.
I am not an ex-smoker, I am a non-smoker.

I try to encourage everyone who is trying to quit to read the book.
It really appeals to your logic and common sense rather than making you feel bad about your health and breath and everyone else around you.

It works, even if the effects are not immediate - as in my case.