Free Sonic Small Shake

Birthday’s coming up and you’re thinking, what to treat myself? How about a free Sonic shake—hand-mixed, creamy, and totally worth it. Just sign up for their rewards program and you can claim this offer within 30 days of your birthday. I did this last year, and wow, that chocolate swirl hit the spot. But here’s the catch: you have to make a purchase (any will do), and it only works at some Sonic locations. Also US only, so if you're reading this and you're overseas, this isn’t for you. Still worth the sign-up though—the app’s easy, the steps are straightforward, and you won’t want to miss your free small shake with a swirl. Just remember, it’s gone in a month, so you’d better act quick.