I joined The Wine Society as a student. Without doubt it was the wisest expenditure of my three undergraduate years (OK, the only wise money-move of those years). Yet it took me until the end of June this year to visit the Society’s French outpost in Montreuil – still charmingly called Montreuil-Sur-Mer even though it has been marooned inland for centuries, following its heyday as a port from the 10th to the 13th century. I’m kicking myself now for wasting so many opportuniti