Cool off with a sundae for 99-cent for National Ice Cream Day at this chain restaurant

Here’s the scoop: Sunday is National Ice Cream Day and for less than a buck, you can treat yourself (and a few friends if you’re feeling generous).

Krystal is offering 99-cent sundaes now through Sunday, July 23. Guests can choose from chocolate, strawberry or the OREO cookie pieces flavor. Additionally, throughout July, guests who order a soft-serve treat with Oreo cookie pieces, take a photo and post it on Instagram or Twitter tagging @Krystal and @OREO along with the #OREOKrystalSweepstakes will be entered to win a $100 Krystal gift card.

Various locations, krystal.com.