I think the best way to do so is with your will!
"In 2005, the U.S. Centers for Disease Control and Prevention reported there were 45.1 million adult smokers in the U.S., 70% of whom said they wanted to quit. According to the American Cancer Society, only 5% to 10% of smokers are successful on any given attempt. Doctors estimate it takes people five to six tries to end their addictions for good."
"The American Cancer Society says medicines, along with support or counseling programs, can double your chances of success. But the organization's Cancer Facts and Figures 2003 report said only 15% of U.S. adult smokers and 6.8% of former smokers used drug therapy and/or counseling. That may be because people either don't want help, they don't understand the hold nicotine has on them, or they just don't want to take a medication,"
http://www.forbes.com/forbeslife/health/2006/11/15/smoking-quit-methods-forbeslife-health-cx_avd_1116smoke.html