What finally got you to stop?

I know for me it has been a very long drawn out thing. Wanting to stop when smoking, wanting to smoke when sober cycle, etc. I just got sick of wanting to be out of the haze of smoke while also wanting to stay in it. Cognitive Dissonance I believe that is. Anyway, of course theres a thousand other reasons. Just looking for what the situation was with some others that finally got them to take the jump into not smoking.