how about safety?
if a club has a decent policy where the ladies feel safe and know they can have a good time without pissed idiots starting trouble, they would be more inclined to go there.
they tell thier friends = more fanny, the more fanny there is, more men etc etc
just a thought
Rich
*edit - folowing on from that, why not a theme night of uniforms, firemen/policemen etc - the ladies love men in uniforms