"I use a map."
There's an old Joke: "How do you drive an engineer crazy? Tie them to a chair and force them to watch you fold a map the wrong way."
Last week, for the very first time, I had to explain that joke to a young engineer that did not know what a fold-up street map was. When the zombie apocalypse comes he'll be staring teary-eyed at his dead GPS while us old farts have stolen enough fuel to drive to Sanctuary.