The Co-op like to harp on reference their community and idealistic socialist roots, but seem to target and exploit their lower income and financially vulnerable customers.
Waitrose Essentials range goods are well priced and often undercut the prices in Tesco/Sainsburys/Morrisons and also do not lean so heavily on the multiple purchase requirements. Get a MyWaitrose card to get a free coffee entitlement every trip with 20% off fish purchases on Friday. For lunch...