7/11 isn’t just a typical Thursday today. It marks 7-Eleven’s unofficial birthday, and they are celebrating by making it Free Slurpee Day. It’s going to be bigger and better than the past celebrations. This year’s Free Slurpee Day they are upgrading to the 12-ounce Slurpees. The tasty summer promotion will go from 11am to 7pm, and you may even be able to find some unique Slurpee-branded merchandise including neon-colored Slurpee sunglasses and flip-flops. Just one piece of advice, watch out for brain freeze!