We all know that Tina Fey can clean up nice, but as Liz Lemon on "30 Rock," the actress looks as if she raided an Old Navy four years ago and hasn't updated her wardrobe since. Add to that the troublesome hair - not quite frizzy, not quite curly, sometimes strangely limp - and she's nothing if not a style-challenged case study for "What Not to Wear." And yet she's become America's geeky sweetheart. Why? Because in her schlumpiness, she's just like us.