First off, there are still a few free tickets left for Nick Thune tonight at Helium. Simply email firstname.lastname@example.org and tell 'em which show—early or late—you'd like to see on either Friday or Saturday.
Then on Saturday there's the sketch group, Hey You Millionaires at Curious Comedy. The Millionaires hail from Chicago, and were voted "Best Sketch Group" the last two years by the Chicago Reader. In the Windy City, it's got to be a real honor, as being home to the venerable Second City, where so many now-stars did their training, Chicagoan's surely take their comedy seriously.
Hey You Millionaires - 9PM @ Curious Comedy, 5225 NE MLK Blvd., Portland 97211 - $12