Most of us use our phone's GPS over our car's (if your car even has GPS!) because your phone updates more frequently and is more accurate. I've used various smartphone holders that attach to the windows, but they always ALWAYS eventually fall off. So I'm excited about this Heads Up Display from HappySatchels! Your phone lies flat on the device's cradle. Then you use any head-up display app and the GPS is reflected up onto the screen! It even works in low light, so no worries about driving down those dark roads. Grab your own, and safe travels! (Thanks, Brody!)