Those of us of a certain age remember asking for directions and keeping two-inch thick road atlases in our cars to find our way around. Then with the internet came the miracle of Mapquest, followed by the how-did-we-ever-live-without-this GPS systems you could attach to your dashboard. Then smartphones kicked the road trip game up a notch with map apps that not only give up step-by-step directions but also real-time traffic conditions and the ability to find a gas station or restaurant with g...
