I think a lot of the highlights are covered. When I get employees out this way, they usually head to Seaside or Cannon Beach so they can see the Pacific Coast. If you head to Cannon Beach (Haystack Rock), stop off at Camp 18 along the way there (mile marker 18 -- an old logging camp) for some breakfast or lunch.

Aside from that, there are many good wineries in the Portland, South West Washington area that you can check out. Multnomah Falls is another good stop. You could definitely do the Falls and Cannon Beach in a day and still have some time to burn.