Tomorrow only (3/22) Sonic is offering Small Ice Cream Slushes for $0.79 all day long! There are no coupons required to snag this deal.
(You may want to check with your Sonic before you head out to make sure they are participating).
Plus, Sonic Drive-In is offering half-priced shakes and cream slushes after 8pm now through the end of summer! They have 25 delicious flavors to choose from.
Enjoy!