My pre-op instructions said no alcohol for 2 weeks prior to surgery. I forgot and had two drinks last night. Big problem?

I'm gonna say "no," but someone else may disagree. I think I had a glass of wine or two, a week before my surgery. I think the 2-week thing is probably intended for people who are fairly heavy drinkers, to sort of cleanse their systems and get them away from feeling like they need a drink every day.

I am under the impression that the reason for not having alcohol is because it causes the liver to swell and part of the banding procedure involves moving the liver out of the way. I guess the question I'm asking is how much liquor causes the liver to swell sufficiently to have a negative effect on the surgery or on recovery time.

That's a good point. I am sure alcohol plays a role in that. I think eating fried and fatty foods is even a bigger problem (unless you are drinking booze every day). I think you are fine though, as long as you don't partake again before the surgery.