Santa-tracking - thanks to a Pittsburgher
I will divulge the Secret Santa path for deliveries in the United States:
Which shows Santa is not really constrained by time or fuel efficiency. What is really shows is just how much my programming skills have atrophied at this point. If I ever in my career teach a class in computer science (unlikely) I think I will assign the traveling Santa problem to find the shortest noncrossing path that will hit every county in the country, which is all that map really does. That algorithms book is still on the shelf though.