Or you could do what I finally did after about 40 years of New England winter riding and buy yourself a cheap used mountain bike, outfit it with studded tires and make it an exclusive "winter bike". It was the best thing I've done in years- I could use my regular commuter for those days when the snow had melted and the streets were clear of ice and snow and jump right back on the "winter bike" at the first sign of snow or glare ice.