Alcohol lost a lot of appeal to me once i realized how much time i was losing through hangovers and how badly i was sleeping. And i found that a big part of my enjoyment was a) being social b) having a cold beer-shaped thing in my hand c) wanting to drink something with taste. So when people drink around i me, i have one real beer and like four alcohol-free beers, which kinda gives me 70-80% of the fun. I always have some in my fridge and they are enough to curb any sudden urges. Alcohol-free Wheat beer is a godsend.

Replacement works, for me at least.