Rather than pretend it doesn't happen, which I've done in years past, I've confronted the problem head-on this year. I've scheduled no talks for Friday afternoon. Instead we're planning some loosely structured networking.
This is inspired by the digital identity world conference I went to last year. The day before the conference started, they had a golf day for networking. You'd turn up, form a foursome (a golf foursome, you foul-minded perverts), and get to know them and their business (and learn what's working for them and what's not working) as you played a round (which is different from "playing around").
But rather than play golf, which assumes a certain taste for ugly clothing, and carries overtones of white men in their clubhouse (c.f. Caddyshack et al.), we should do something that Portland has to offer. So we're heading off to the zoo after lunch on Friday, rendezvousing at an hour to be determined and then networking our way around the zoo.
I also have high hopes for an evening event for those folks staying in town. Rael tells me there's a classic gaming arcade (original Space Invaders, etc.) next door to a brewpub. For the sum of several hundred dollars, a group can rent out the arcade and bring in beer and food from the brewpub. Now that sounds fun