From Smithsonian Magazine, the Big Gulp at 7-Eleven got bigger:

http://blogs.smithsonianmag.com/food/201
3/05/the-history-of-the-big-gulp/?utm_so
urce=smithsoniantopic&utm_medium=email&u
tm_campaign=20130602-Weekender

or

http://tinyurl.com/n32spxf

Jill