When I first started driving I taught myself how to navigate Pittsburgh by filling up my car with gas, picking a direction to drive in for fifteen or twenty miles, and getting thoroughly lost. I’d then spend the evening trying to get back home, or failing that, someplace that I recognized and could navigate from. I was thinking about that this morning as I attached a GPS puck to the roof of my car and ran the interface cable through the window. It’s been a long and busy couple of weeks, so while Lyssa was out and about …