I found a great book a few years ago at a Cracker Barrel. It's called The Next Exit. It has all the interstate hwys in the US sorted by state and direction of travel. It lists the exits by their number and shows rest areas, restaurants, gas stations, hotels, campgrounds, etc at each exit. Mine doesn't cover US or state hwys. Just Interstate hwys. But my book is about 4 years old. I'm sure they've updated it. Maybe now it includes those things, too. Hope you have a great trip.
mom to 2 wonderful girls born 11/05 and 10/08