Once again, a reminder of the trove of regional products that are available in supermarkets in the hinterland. Most often they carry the best or most recognized brands and producers at superior prices to tourist shops. Some cheese displays are outstanding, and many supermarkets specialize in local wines and ciders. Remember to bring carrier bags since supermarkets don't supply them.
Below are displays of dairy (butter), dried algae and processed fish, caramel, local cakes and cookies at a SuperU in Carnac, Brittany where, besides choosing local stuff for our picnic, I snatched a pound of Guerande fleur de sel at a pretty price.