So when taking a long trip remember a few of these tips:
1) A compass and map are cheap and priceless! A simple map of the US and compass can help you get a lot done... all you need to know is North from South and where you've already been. These make a great backup in a pinch if your GPS dies.
2) Keep checking road markers. If you're going through a sparse area remember to keep checking road signs every few miles to know exactly where you are and that will make the use of a map 100000 times easier! You can't find where you're going if you don't know where you came from.
3) Avoid low populated areas if possible. If you don't know where you're going but think taking a back road would be a fun idea... you're probably wrong... Unless you LOVE the mysterious, unknown, and staying at a "roach" hotel in the middle of nowhere without cable or cell phone service! Stick to main highways as much as possible, and follow the above tips.
Keep all of these things in mind and your trip will be much more relaxing and comfortable and every once in a while, practice map reading... it's a useful skill to have!