Oooh, I have a few!
Right now, I want to drive highway 1 along the coast from San Juan Capistrano to Ft. Bragg (I think it goes up to Ft. Bragg anyway). I want to take a week to do it, only drive during the daytime, explore all the little towns along the way. No chain motels, no chain restaurants, only local establishments.
Eventually, I plan to see all 50 states.
Ideally, I would love to do an old school tour of Europe.