I smoked a pack of cigarettes a day for about 27 years. I had tried to quit before, but the patches didn't work, and the gum and lozenges taste so bad that they did me no good either. I had used snuff in college, and enjoyed it, so a couple of weeks ago, I ordered a selection of snuff. I haven't had a cigarette in 2 weeks!
Here is the point I wanted to make. The opinions on this, and all the inferior snuff forums, recommend carrying a high nicotine content snuff, and using it when you want a cigarette. This works pretty well, but smoking is not just about the nicotine, it's also about "keeping your hands busy". Getting over the craving by sniffing over and over again with a high nicotine snuff, I blew the top of my head off many times. What I settled on, was carrying a killer high nicotine menthol snuff, but also carrying something like a Wilson's SP, or a McChrystal's Raspberry, that I can sniff repeatedly with "wild abandon", without getting a headache. This tactic has really helped me get through some of the bad cravings.
An old friend of mine tells me that quitting cigarettes is harder than quitting heroin. And he's just the sort of aging hippie that probably knows first hand.....

Cheers,
Java