By: Erika StevensIf you have been to Caribou Coffee in the past few months you know that they are running a summer campaign most likely because your friendly barista asked if you had a card. Stay Awake for Summer cards can be picked up in store and work like a good old loyalty punch card with customers receiving a sticker for each drink they purchase. After your 7th drink you receive a free drink or food item. Caribou has included a QR code printed on the back of the card and the....