From now until 6/27/10, when you purchase a shake at Sonic, you’ll get a coupon for a free shake which you can redeem whenever you choose. Click here for more details.
Also, order a big SuperSONIC® Cheeseburger and get a free medium order of crispy Tots. Here are the details.
And don't forget Sonic has Happy Hour from 2-4pm (M-F). Half priced drinks and slushes!!
It's always good to check with your local Sonic to make sure they are participating in any of these promotions! Find a Sonic here.