So much coordination was required for my move from Los Angeles to Washington state — organizing years of belongings into piles for sale, donation, and three households — that I didn’t have much time to plan the itineraries for my road trips north and south. And while preparation is the cornerstone of an uneventful trip, where’s the fun in that? Besides ensuring my car was safe and the roads ahead were passable, my sojourns were an exercise in improvisation. I stopped to eat w