2.) List all reasons you want to quit. Every night before going to bed, repeat one of those reasons 10 times.
3.) Develop strong personal reasons in addition to your health and obligations to others. For example, think of all the time you waste taking cigarette breaks, rushing out to buy a pack, hunting for a light, etc.
4.) Begin to condition yourself physically: start a modest exercise program; drink more fluids; get plenty of rest; and avoid fatigue.
5.) Set a target date for quitting; perhaps a special day such as your birthday, your anniversary, or the Great American Smokeout. If you smoke heavily at work, quit during your vacation so that you're already committed to quitting when you return. Make the date sacred, and don't let anything change it. This will make it easy for you to keep track of the day you became a nonsmoker and to celebrate that date every year.
http://www.ama-assn.org/insight/gen_hlth/smoking/prepare.htm