On July 11, the world’s largest convenience store retailer is celebrating its 86th birthday by inviting guests to enjoy a FREE SMALL Slurpee drink at participating 7-Eleven stores nationwide from 11 a.m. to 7 p.m., while supplies last. The birthday freebie is a small-size Slurpee – almost DOUBLE the size of the prior 7.11 ounce birthday drink! My mom’s birthday is 7/11 so the kids always enjoy taking her out and treating her to this birthday freebie!