Slurpee fans rejoice! On Friday and Saturday, you can bring your own up and fill it with your favorite Slurpee flavors from 11 a.m. to 7 p.m. at all 7-Eleven locations.
The annual Bring Your Own Cup Day means you can bring in a cup you want that fits into a certain size, and fill it for only $1.50.
There are some rules though. The cup must fit through a 10-inch hole upright, it must be food safe, you must plug the leaks and there is only one cup per person on Bring Your Own Cup Day.
They are also telling people to join the party on Facebook and Twitter using the hashtag #BYOCupDay!