Just renamed all my G+ circles. "Fellowship of the Ring" = Close friends. "Rebel Alliance" = Friends. "The Night's Watch" = Family. "Evil League of Evil" = Work Friends/Colleagues. "Brown Coats" = Acquaintances. "Ruler(s) of the Universe" = People I'm following but don't know personally (eg: celebs).
Bonus points if you can name all the things referenced (and no looking stuff up and cheating, either!).