If there's one thing 7-Eleven has absolutely nailed, it's making Slurpees a cornerstone of convenience-store culture. These icy, syrupy, brain-freezing beverages have been delighting kids (and ...

You could also mix multiple Slurpee flavors for even more variety. Combining blue raspberry and lemonade with vodka gives you a layered drink that's as pretty as it is delicious. Throw some fruit ...