Basically buy overstock or items near expiration date for bargain basement prices and pass the savings to consumer. Think toblerones for a dollar, a pint of Haagen Daaz for two bucks, and occasionally some more eclectic health food products that bomb out of whole foods. They used to have these coconut milk chia seed puddings 2-4 for a dollar depending on how well they were doing. Hits the skinner box model of shopping by having variable inventory at cut rate prices with a selection of stable items like bread and milk, meat, vegetables, household cleaners, etc.