You have to reach that magic point, organizationally, where, after a few seasons, your members have no idea what they would do without those summer weekends with their best friends (fellow members), forget what golfing is, realize that yard-work can wait until Mondays, and go into "withdrawl" September-December until first winter camp. And Fridays at work are hell because all you can think about is, "Ewwww... did I empty the ham sandwiches out of the cooler after last weekend?"
That is a big hump to get over. To go from members that think "Hmmm... nice day... I think I'd rather..." -- to a mentality of -- "What else would I do?"
I agree with William -- Check out Kilties.