My number #1 tip for surviving a long road trip and not going crazy:
Stock up on podcasts. I love NPR, but hardly have the time to listen to the radio, so I miss all my favorite programs, such as This American Life, Wait, Wait, Don’t Tell Me, and A Prairie Home Companion. While you can only download the News from Lake Wobegone section from APHC, most of the other shows are the entire show.