If you ever find yourself driving from east to west across the state of Pennsylvania in the middle of winter in a 1989 Subaru with everything you own in the backseat, be sure to bring the following items: several extra-large packages of beef jerky, a pee jar, and an invisible companion to have conversations with. You’ll need these things because Pennsylvania, to put it mildly, is an extremely large state. It’s so large that you’ll wonder sometimes if you’re actually driving across it, or if you’re stuck on one of those old time car-driving movie sets where all the windows in…