This is a great one if you have kids or go to birthday parties! It can get expensive, so nothing like a free pizza.

Get a free one-topping personal pizza at Chuck E. Cheese. Click here and sign up, make sure to confirm your email.

Free Pizza reward is valid 24 hours after email and/or SMS account confirmation. It appears to be valid for about 2 months after signing up.

Plus you can refer your friends and get 100 free tickets per person who signs up.