After countless freebies that were only available on the East or West coast, we've finally got something for Hiffers doing their thing in the Midwest! Here's a coupon for a free 20 oz. Pepsi at participating Kum & Go convenience store locations. I don't plan on being in the Dakotas between now and the end of September (which is when this coupon expires), but I'll keep one in my wallet just in case. You never know!