Back when Halo 4 Double XP was going on, I used the codes and gave all the Mountain Dew and Doritos to my cousin. He is still riding that sugar high.
For about 4 weeks I would drive around in a circle capturing hills at about 8 7/11's. Sit in the parking lot and scan a Doritos and Mtn Dew label I taped to the front and back covers of a notebook I kept in the backseat. The real fun was when someone else was doing the same thing following me and we drove around in circles until one of us finally gave up and decided to continue living his life.