A.K.A. The 3 As of AA.
Be aware of your triggers and smoking habits - the people, places, and things that stimulate your cravings. It could be second smoke, a lighter, a 7/11, a breaktime at work, your spouse, parents, sister, "friend," boss. Just Pay Attention and write it down - X,y,z, started my craving.
Accept that a trigger is never responsible for being a trigger! You are responsible for your quit! So since smoking is 100% not an option, what will you do next time so-and-so or whatever sets you off? Have your answer in hand. The more you do this, the more prepared you'll be for both expected and unexpected triggers.
Action - walk away, change your thought, hum a tune, snap a rubber band on your wrist, pop a mint, get grounded and follow through to the other side of your crave - taking direct action is way easier than trying not to smoke!
Plan before you quit, plan the day of your quit, plan today no matter how many days you have quit and you will soon have your plan so ingrained that taking action is just normal - you new normal as a Smoke FREE Individual - not a slave to addiction!