CheckoutSmart - make your supermarket shopping more rewarding! Earn hundreds of pounds a year in cash rewards from your favourite brands by simply snapping a photo of your supermarket receipt and uploading to CheckoutSmart. Available at all your favourite supermarkets including Tesco, Tesco. Com, Sainsbury's, Sainsburys. Com, Asda, Asda. Com, Morrisons, Morrisons.