When I was a 20 something and I did WW, they did "exchanges"; so many breads, so many meats, so many fats, so many fruits, and you got unlimited vegetables.
Wine is grapes. Tequila is cactus. Vodka is potatoes. Beer is grain. 
Seriously, that's how my friend and I counted our booze...which was great, because we got unlimited tequila. LOL
Incidentally, we still lost weight. The joys of being 20-something.