Driving back from Merignac airport one darkish evening I was rather tired and cross - anyone would be who had just fought their way through Gatwick South to a plane. Fortunately the rocade is not the bumper to bump jam in the evenings as it is in the daytime. So I was gradually soothed, avoided taking the turn off to Toulouse and headed dutifully towards Bordeaux Centre.
Once over the dreaded Pont d'Aquitaine*, I remembered I had to take the second right turn, try to squeeze in between lorries thundering down on my right in order to join the rocade. I had to be in the very rightmost lane in order to get off the rocade to get onto the A 89 to Libourne and Lyons. We were still on the free part of this motorway.
Then the blue signs for the peage loomed up I took a wrong turning on the A89 and headed for Libourne Centre. This takes one off the motorway to as I quickly discovered. So I drove home, which is near Perigueux, from signboard to signboard, starting towards St Medard de Guizieres which I knew was somewhere near. We spent a couple of hours wandering through villages and vinyards north of Bergerac and eventually found a link to Perigueux.
* I dreaded it from its inception. Then it was a a steepish four lane bridge, slung on metal strings between four metal towers. The formal speed limit was 70 km/ph. Now it is a six lane bridge with no immediately visible change to the untutored eye. It just got wider. The speed limit is still 70km/ph.