Too often for my own good. I've been in China for awhile and usually only go poon a couple times a week, but lately I've been going 4-5 times!
I think the forum has a lot to do with it. All these reports/pictures and reading about sex in general really gets my mojo going.
It's better when I have a lot of work to do. As of right now I'm fighting the urge to check out a place tonight, however I'm not confident I'll have enough willpower...