From the 7-11 Facebook page:
Happy 7-Eleven Day – Our Birthday, Your Bash
Stop by for a FREE 7.11 oz Slurpee drink, general merriment and a one-man dance party should you choose to start it. “Running Man” and “Raising the Roof” welcome. “Macarena” NOT welcome.
RSVP today and Facebook will remind you to claim your free-ness on 7/11/11. They’ll also tell you who else is celebrating a birthday, but let’s focus on us, okay?