Subway free sandwich with purchase
Basically, you play a sandwich-building game, picking a meat, cheese, and condiments. You name your creation and at the end get the coupon via e-mail. Not a bad trade if you regularly eat at Subway.
I named my sandwich cheesy spicy chicken because it has two cheeses, roasted chicken breast, salt, pepper and red onions. Tasty!
Unclear when the offer expires.