7-Eleven is kicking off Slurpee season this Saturday with a Bring-Your-Own-Cup Day! They are allowing you to bring any container that can be used as a cup to the store between 11am and 7pm and fill it up with your favorite flavor of Slurpee for only $1.49.

Their terms say that the container “must fit upright through an in-store display with a 10-inch-diameter hole.” That means trash cans and inflatable pools will not be allowed. Bummer!

Click here for the full details on the promotion.