I work across the street from a large Mall that features a Ruby Tuesday restaurant.  Today, they brought us some menus and offered free delivery.  Much to my amazement, the menus said "Ruby Tuesday."  You'll notice no letter "s" at the end.  Here's the thing: I've heard a great many people mention this restaurant and never, EVER have I heard it said without an "s" on the end.  I guess people just figure there's some woman named Ruby Tuesday out there who started the restaurant and lent her recipes as such, or whatever.  Let's give her credit by putting the old apostrophe-"s" on her.  Or maybe (JUST maybe) people in the Ozarks are so grammatically stunted as not to have the ability of uttering a store name without putting the "s" on it for whatever reason.  Are they all trying to let each other know that they're aware other stores of the same name exist (e.g. Targets, Barnes & Nobles) or do they just want to give credit where it's due (e.g. Target's, Barnes' & Noble's)?