Going in and out of sobriety for a while, I became very "aware" when drinking. (Currently sober for 4+ months.) One thing I noticed is that I just don't enjoy moderate drinking. After one or two drinks, I feel tired and anxious. And on the rare occasions when I actually stopped at that amount, that's all I got out of it--feeling tired and anxious. So when I start playing the "one drink would be nice" trick, I try to remind myself what one drink really feels like, and then I realize that I don't want it. (Well, there is also the reminder that I'm not likely to stop anywhere close to one drink!)