I've had no problem what so ever drinking Gin and Tonic. Vodka and Diet Lemonade. Vodka and water with a twist of lime is nice. Dry White Wines are the lowest in carbs.. and I mean dry!
If you stick to your prescribed drink of choice for the evening you'll probably be ok. Vodka and gin are both good because in addition to being relatively low carb they have little or no cogenes.. I think thats the word.. Which means your liver can deal with them easier.. It is the liver right.

But if you are going to drink seriously then have some resolve about you as per eating.. You can't have a few and then change your mind about what your drinking.. Other people can't buy you drinks that they think you might like.. Bear/bare in mind that if you slip its likely to be three days before your body uses those carbs up.. At the minimum.

Also and I know I might get a bit of a slap for saying this, The calories *dum dum dum* are something that I found it helpful to pay attention to. When drinking alcohol you are consuming shed loads of calories and you body will run on that rather than burning fat before it goes back to fat burning..

I'll stop typing now... This is starting to look like an essay