I quit cold turkey...twice. The first time I just decided to stop (which wasn't easy, but I did it), and lasted several years until I got the bright idea that I could have just one again. Five years later I quit again for good. Started exercising immediately. When the cravings came, I concentrated on how sweet a deep pull of air was. That was 15 years + ago. Never looked back.

Don't backslide! If you do, quit again.