>> INSIDER WIRE —Anna Wintour has a big day tomorrow: her daughter Bee Shaffer is graduating from Columbia, and Anna's joining New York Mayor Bloomberg at City Hall tomorrow for the retail initiative announcement she hinted at last week.  The program, called "Fashion's Night Out," will take place on Sept. 10 at the beginning of New York Fashion Week: stores all over New York are being asked to stay open late and throw parties open to the public; designers, meanwhile, are expected to make appearances at their own stores and at some department stores. [Columbia, City Room]