Personally, I've stopped using alcohol completely. At first I just tried to drink less, but that's difficult because using it lowers inhibition and makes it more likely to be overused. It's much easier to just stop entirely and remove any possibility of a bad decision. I've found that I actually enjoy mocktails, alcohol-free beers and soft drinks when I go out and don't miss alcoholic drinks one bit. I know I won't get a hangover or be in a compromised mental state at any point. It feels great.
Even though I only did this for personal reasons I do now see many more of the negative effects of alcohol as an outside observer. I hope that within my lifetime I'll see much less use of this drug much like what's happened with tobacco.