OK (2nd attempt at an answer). Listen, darling boys, I happen to be the exception to the rule and am very, very good at map-reading. You can ask Mr. J2 - he's on here under another name, but doesn't visit very often. He refers to me as his very personal Tom-Tom. (I love donkeys by the way, retrocop, and can find the grazing :)x )
I put it down to good GCE Geography teaching - JMB. 25% of the paper was down to answering questions based on a bit of an unseen Ordnance Survey map. I would'nt have a Sat-Nav. at any price.
Younger daughter tried to visit us on Sat., she abandoned the A64 because of traffic and got lost in the maze of little roads. She was constantly ringing me and saying she had passed a signpost to ' wherever'. I looked up her whereabouts on the map and guided her here. The Sat-nav was trying to take her about a 20 mile detour!