Comment by ghaff

Pre-(consumer) GPS, I definitely got turned around even in cities I knew reasonably well that aren't on a grid system in parts. It can be bad enough today in some sections of busy cities where you need to constantly shift lanes etc. and be at least moderately aggressive but trying to drive with a map open on your lap at night could be a bit of a nightmare--and not especially safe. It probably took me years before I had a passable sense of the geography of Boston.