I'm actually in the process of quitting my own way as well. I failed a couple of times with cold turkey, used to be a pack a day smoker since I was 17, but now I've been using my e-cig, and have been stepping down my nicotine intake periodically.
It helps that it is economically sound to not smoke for me. I live in Chicago, it's up to 11 bucks a pack now. By contrast, the equivalent 'pack' of cartridges is the same price, about 11 dollars online, but lasts about 5 times longer for me.
I'm currently on the lowest tier of nicotine, so I think when I phase them entirely out, I'll add that money as a separate column on my entertainment fund. I could have my official 'nicotine-free' ship in not too significant an amount of time.