You may remember them as something that made your life hell in the elementary school days, but turtleneck sweaters are having a major renaissance. You'd be hard pressed to find a Fall '13 catwalk show that didn't show a turtleneck in some form or another. The most exciting way to wear them was as a layering tool, worn under tops and poking out from cozy coats. And that's the beauty of it: they're the coolest thing in fashion right now but they're practical too - how often does that happen?