How to stop smoking

many of my freinds who know me would ask, hey how you left smoking. I would say I never picked it up. And, that is not a lie - I never ever felt that smoking is neccessary for something to be done, say a task or activity. Lesson -1. NEVER ASSOCIATE SMOKING WITH SOMETHING IMPORTANT. And, frankly, I don't know when I stopped it. Actually, it so happened that we formed a scating group. And we started roller skating every evening in our college corridor. I used to get so tired but i never had a desire to smoke. So may be a (ii) Good exercise for full 1 hour daily may make all the difference.