PHILADELPHIA (CBS) – Today is 7/11, so you know what that means… It’s free slurpee day!

If that isn’t reason enough to celebrate, how about this: the slurpee turns 50 years old this summer.

You can get your free slurpee between 11 a.m. and 7 p.m.

And if you really love slurpees, buy seven in the next week using the 7-Eleven app and get eleven slurpees free of charge.