I was a heavy drinker throughout college and for years afterwards. I never ran anyone over or left a baby unattended in a pool, but I was doing it by myself a lot and it was getting in the way of things. But then 6 months ago I just decided I had had enough and stopped altogether. I still smoked weed in phases, but then I realized that I was binging on it and essentially using it as a substitute for alcohol, so now I've stopped doing that too. I figure I'll get around to phasing out caffeine, cigarettes and animal products eventually.