When I'm travelling, I have a hard time with books. I always get some magazines. That's the only time I ever read magazines. You could even borrow some magazines from your library in Maine and then mail them back when you get to GA.
You could also do some writing.
Try this Story Spinner. Write down a few of the results and then work on them on the trip. All you need is a pen and a 50c notebook.
http://www.bonnieneubauer.com/ssonline.shtml
You could write out some goals. For example, you could write out where you'd like to see yourself in five years, and then work on a plan to get there.