When I was 18, I drove across the country. I started in a gas station with the State map, paid $2-3 for it then looked at what road I wanted to be on to get to the next State. When I got there (or just before the State border) I'd stop in a gas station and get the next map and plan out my trip, making note of what towns and cities I'd need to pass to get where I wanted to go. Sure, I could have bought the bigger atlas for maybe $20 and planned it all at once, but I wanted to collect a map from each State. In regards to delivering a pizza, we fucking memorized street names and knew how to get around. Since being at home was boring, we'd always go out to meet up with people, so we always knew how to get pretty much anywhere.