EXTRA Reminder acts as a cash register integration that is programmed to play a special sound when the cashier recognises a barcode from food and drink items that might make your mouth feel anything less than fresh. Newspapers and bread were fine, but anyone who bought items like tuna sandwiches, coffee or cigarettes caused the Extra Reminder to go off. An interactive index was created with over 200 food and drink items that were then programmed to interface directly with an individual stores cash register system. This triggered the alert when scanned, turning checkout counters into unique media spaces.