KFC - Free fries on a Friday
KFC are giving away a free portion of chips every Friday with no purchase necessary. All you need to do is download the Colonel's Club app (totally free) and find the deal in the 'Offers' section. Just tell the cashier you want to use the deal and let them scan your barcode.
You can redeem this once every Friday, that means you can potentially get 12 free portions of chips if you redeem this every Friday while it's valid!