The blizzard sweeping across the Northeast is causing such a frenzy that shoppers are buying way more than bread and milk. "There's a run on toilet paper," says Ian Joskowitz, chief operating officer of the West Side Market, which has five stores in New York City. "Outside of [Hurricane] Sandy, this is the most extreme" shopping rush Joskowitz believes he's ever seen. At Zabar's, a family-run supermarket in Manhattan, bagels and lox are flying off the shelves. Avocados sales jumped 220% Sunday compared to a normal day at the Stop & Shops' 182 stores in the New York metro area. "People might be thinking 'what if we ... (full story)