Perhaps that's because it's an obvious one for winter, but it's also classic functional: big, indulgent, opulent knits in neutral colors.

WSJ: Tina Gaudoin on Style: The Woolly Logic of Winter Wear

Over many years you would see seasons progress very predictably: the bare trees of winter, giving way to the green tinge of spring, the full leafing out of summer and the blazing colors of fall.

FORBES: Muni Bond Manager's Journal: Seasonal Affective Disorder