To anyone living in Portland, OR

I already created this thread in the Regionals, but didn't get a response. Just wondering if anyone living in Portland has a couch/floor that I could crash on for a night? I'm leaving tonight on Greyhound headed up to Portland for the Fire Department test. I just need a couch Wed. night, and I'm leaving again on Thursday after the test. I can't really afford a hotel, so I'm looking for something. I'm willing to pay in beer or food or whatever. Hopefully I'll be able to check NS while on the trip.