The only tip that works: You need to want it enough.
I tried a bunch of tactics, I've seen people around me use a bunch of tactics, patches, drugs, therapy, whatever. You name it, I've seen people try it.
Thing is, none of those work because smoking, while addictive physically, is mostly a mental thing. The day I quit, actually quit smoking legit, was the day I said to myself: "What am I doing? I'm wasting money and health for no fucking good reason. Fuck this" and threw my half-empty pack of cigs in the trash and never looked back.
That's all there is to it. You'll never stop craving a cigarette once in a while, but when you get to the point where you're mentally done smoking, it doesn't matter. You're done, you're good.
Until you get to that point, the second you quit smoking and at one point or another get that craving for a cigarette, you'll start smoking again. It just doesn't work without being mentally ready to quit. If you can't quit without "tools" you're simply not ready to quit.
At least, from my experience and from what I've seen around me, this is how it works.