I am planning to take a 10-11 day trip in early August from San Francisco to Seattle and back. I want to see as much as possible of the local areas and hike in some nature. I wouldn't mind heading east towards Montana, but I'd rather have time to enjoy each place than I would rushing from city to city. The only "must-sees" for me are Seattle and Portland.
Any ideas for attractions on the road, and ways to make this trip as cheap as possible would be greatly appreciated!