 Be careful using GPS maps in rural areas. The directions can send you on mountain roads that might not be passable. Hamilton says if you get a flat, be careful where you stop to fix it. The best thing you can do if you get a flat on the road is just to make sure you pull off to the side of the road and you're out of the lane of traffic. That's the best thing you can do. And that's good advice to make sure that your spare tire is in good shape too and that you know how to change the spare. And use the tripcheck.com website to verify traffic and road conditions on your route.