Here's the best way to quit:
Define a quit day. Not a quit pack, or a quit cigarette, or a quit event. A quit day. Let's say that quit day is Monday, August 20th. On Sunday evening, right before you go to bed - throw out all your lighters, cigarettes, etc... and then go to bed. When you wake up, you're a non-smoker. If you wait to finish a pack, there's always another one at 7-11...