I had a smoking problem too, even though it's not really cigarettes, it's more towards Blacks, and Cigars but it's still a bad habit that I've had since I was 17, so for like 2 years. I stopped for 2 months, then I had one Black on Saturday, so not proud of myself, and I'm starting over now :|
The thing I'm gonna start doing that you should start doing too now, is keeping a log of how much money that is saved, and then when I look it at, I give myself a reward like a new videogame or stuff for my car because instead of spending money for smoking, I get something better and worthwhile.
Another thing I do to fight the urge is buy these cool-aid packets that are 25 cents each for a gallon, and a huge bag of sweetener(not Splenda, the walmart brand) good for 5 gallons(if you use 1 cup per packet), for like $5 at Wal-Mart, so they have no calories, very sweet, and it helps fight my eating and smoking addiction. I also make lots of espresso too due to my mom, who switched her nicotine addiction to caffeine like 20 years ago, so that kinda helps too, though I can't handle caffeine that well compared to my mom since I'm young, so jittery problems sometimes :|.