If I could visit Manhattan only once in my life, I would come in December. Walking through midtown at dusk, the gray big-city grittiness of daytime fades away, replaced by a neon-lit sense of glamor. The holidays amplify this fantasy. My favorite store windows are always those of Bergdorf Goodman. Each one is a perfect, intelligently-dreamed-up conceit, a balance of beauty, elegance, wit and humor. This year, one window's arctic landscape shows two regal polar bears and a woman who has chosen fashion over warmth. The bears' heads are made from beads and sequins. Their fur is....white rayon fringe! Yards and yards and yards of it. Genius!