I carry a small Gps nothing fancy but gets the job done. i pre loaded several check points and maps of home, work, hospital, etc.. I live in Oklahoma so tornadoes are a threat and in the event that signs are down and main routes congested all i have to do is turn it on and go towards home. years ago i got stuck comming home from texas when the may third storm hit and i was stuck on I-35 for hours i tried to cut through back roads and got lost basicaly in my own backyard.