The "north up" tip I heard from Jeremy Clarkson of Top Gear, it makes a lot of sense, if you're going south and the road ahead is closed, and you go for a detou

The "north up" tip I heard from Jeremy Clarkson of Top Gear, it makes a lot of sense, if you're going south and the road ahead is closed, and you go for a detour, you know you need to be going south, but if the map keeps spinning around, after several turns you'd (or I would) lose track which direction you're going and which direction the navigation system is trying to take you (in a lot of cases it would be trying to take you back to the original route, although it's closed).