drive down to Dundee and sample some Willamette Valley/Dundee Hills wines
drive over to Canon Beach (1.5 hours away)
drive out to Hood River via the Columbia River Gorge and then take the "fruit loop" around Mt. Hood. Stop at Timberline Lodge where parts of "The Shining" were filmed.
Be sure to eat at Andina in Portland. It's a Peruvian restaurant and some of the best food in the city.
Have fun,
dan