So... the John Candy character is homeless? He lives out of his trunk and suitcases and travels from motel to hotel 365 days/year going on sales calls? In the opening scene, he is traveling back to Chicago, he doesn't have a home there? If not, why not simply stay put in New York or Wichita or St Louis, etc? In many of these cities, Steve Martin had ditched him so he was still on his own, yet still trying hard to make it back to Chicago.... but why? Just so he can check in to another motel?