Sonic: Half-Price Shakes All Day Tomorrow (12/21/13)
Happy first day of Winter (tomorrow)! To celebrate, Sonic Drive-In is offering half-price shakes all day long on Saturday (12/21). As always, I recommend calling ahead of time just to verify that your location is participating in the promotion. Enjoy these while you’re out shopping or looking at Christmas lights! They even have a Chocolate Holiday Mint Shake. YUM! Valid 12/21/13 […]