You know what? I can't think of a time where I have went dry for a month. I have a pint or so a night and try and limit that so that I am not letting the fire grow to the point where something drastic like a month off is the course of action.
Still, I may consider doing that for February. Or perhaps when the beers in the fridge right now run out. It will definitely help my monthly budget and make my return to regular Jiu Jitsu training a lot more manageable! ;)