What data can not tell you.
I don't have a GPS. Well strictly my phone has one and I did play with it for a while however I never got around to subscribing for the map updates and it remains one of my phone's many unused features. Instead Google maps is my friend. So when I'm meeting a new client, Google is open, the destination is found and the route is planned. I don't always estimate the travel time correctly however I rarely get lost.
So it's always been a source of wonder to me how someone can get lost with a GPS.