I did a 1,500 mile circle around Oregon.

The best tip I have (which may no longer be the case) is that the cafe at the gift shop at Crater Lake used to have free refills on their coffees and mochas. You've never really enjoyed an overly sweet mocha until you've had one after being on the road for a month, and cycled up Crater lake in near freezing weather with sleet. I think I must have had at least 15 large cups of the stuff haha.