At some point a few years ago, I stopped wearing turtlenecks. I'm not sure what it was, but I'm officially rescinding my turtleneck prohibition. A turtleneck sweater -- with or without a cowl -- is a flattering fit that highlights your cheekbones and does that delicate trick of being sexy but not revealing. Plus, they're really, really warm, which is kind of at a premium right now. After the jump, 10 terrific turtlenecks, to keep you covered.