Hmm... I think I would have taken a different approach to that final task. The first thing I would have done is locked into my mind the order of the cities, before even entering the maze. So (to take one of my stranger trips as an example) "Charlotte, Philly, Vegas, Spokane..." over and over. Then, when a city on the list appears, substitute that number into the sequence. "Charlotte, 4, Vegas, Spokane..."