Whenever you order a cup of hot drink from McCafe at McDonald's you get the staff to stamp on a coupon for you. After 5 cups, you can get one free hot drink, any size. This afternoon, I exchanged my 5 stamps for a huge cup of Mochaccino (pic above usual price $5). I bought a piece of Apple Pie ($1) which is delicious. Go for it man! The promotion is until end of November, I think.