Hey, Slurpee fans! Get ready for some brain freeze (and sweet savings) thanks to this cool deal from 7-Eleven.

On April 29, bring your favorite cup, astronaut helmet, mason jar, pie tin, or any other unconventional container and fill up with your favorite Slurpee flavor for just $1.99 at participating 7-Eleven, Speedway, and Stripes locations. Limit one cup per person. 

Customers can sip on classic Slurpee flavors, including Coca-Cola, Cherry, and Blue Raspberry. Or enjoy one of the store’s limited-time flavors Fanta Dragon Fruit Zero Sugar. Fanta Dragon Fruit Zero Sugar is a sweet, zero-sugar treat with an exotic blend of kiwi, pear, and watermelon flavors. However, you can always get creative and make up your flavor concoctions by mixing flavors. 

Before you start thinking about filling up a bucket, there are three rules to follow:

Make sure your container is food-safe and clean. Give it a good wash before heading to the convenience store.

Verify the cup fits upright within a 10-inch diameter hole. You can double-check your container’s workability via an in-store display. (If it doesn’t fit, it’s a no-go.)

Confirm the cup is watertight. Fill it with water first to check for any leaks. 

If you’re busy trying to find your cup or forgetting it at home, 7-Eleven offers a $1 small Slurpee via the 7NOW delivery app. 

There are more than 13,000 locations across North America, so odds are one is close to your home, work, or school. 

This deal is from Living on the Cheap, our sister site.