So, what are you doing with the extra $20-50 a week?
I've got a few friends that drink way too much, probably a 12 pack a day (and they are 19 and 20, both underaged)...neither one of them has a car. (one wrecked it, one sold it). They always bitch about not having money...hell, they could save $50-100 a week if they gave up drinking...
I personally dont drink, never have, never will...but I know a few people who quit, and it didn't seem easy.