There's no better sugar high than a 7-Eleven Slurpee and this Sunday, July 11, the sugar high is on the house. To celebrate its birthday, the fast snack chain is giving away free 7.11-ounce Slurpees. Small, but still free. To get the deal, walk into your local joint from 8 a.m. to 11 p.m., ask the cashier if they have free Slurpees. Then fill the container they give you with pure frozen sugary goodness.

Filling above the cup line is totally legit. My fave combo is cherry and cola. Just watch out for a frozen headache.