How to quit the bad smoking habit?

Cigarettes have no benefit for anyone but the cigarette companies, but they do no good to any consumer, not even helping with psychological problems. people always complain about wanting to quit but not actually having the courage to do so. My solution for that problem is get involved into any sport you love with an aggressive coach, as soon as he knows you smoke, he would kill for you to stop. Not forgetting that if you really like the sport, the more you see how bad your health is because of smoking and how your breath doesn't last a minute you would be more willing to stop than before.