I'm a member of Fitness First which I use on average twice a week, mainly for the cross trainers and sauna. I use the gym at my rugby club for a heavy session on a Tuesday night, followed by several recovery pints.
I'm now joining a council run sports centre gym to have a Monday night social workout, followed by a few beers.
I've found that the best way I can justify [to myself!] my beer consumtion, is to hit the gym first.