Yes, a tricky one if you're known for having a few drinks.

I've found ginger beer to be a good alternative. Looks alcoholic, sounds alcoholic (to the completely uninitiated, of which I have discovered there are quite a few) and tastes fab. I'm a bit partial to the Bundaberg one. It even comes in a beer-like bottle. Also, if you are up the duff, remember that ginger beer is great for nausea =)