Shoppers are seen from below a glass staircase of the Apple store on Fifth Avenue on Black Friday November 27, 2009 in New York City. (David Goldman - AFP/Getty Images)
Shoppers rush through the doors of Macy's at 5a.m. ET in search of Black Friday bargains in New York, November 27, 2009. (Finbarr O'Reilly - AFP/Getty Images)
Lauren Arnold reads a book in her tent as she lines ups with others outside a BestBuy store in Laurel, Maryland, on November 25, 2010 for "Black Friday" shopping. (Jewel Samad - AFP/Getty Images)
Black Friday bargain hunters shop for discounted merchandise at Toys R' Us, which opened at 9PM Thanksgiving Day, November 24, 2011, in New York City.(Michael Nagle - AFP/Getty Images)
Tired shopper Victoria Caruthers (L) gets a ride from her friend Streven Johnson (R), both from Washington, DC after spending a few hours in a Toys-R-US store November 23, 2007 in Clinton, Maryland. (Tim Sloan - AFP/Getty Images)
Shoppers pass by mannequins on the shop floor of Macy's in search of Black Friday bargains in New York November 27, 2009. (Finbarr O'Reilly - AFP/Getty Images)
Customers use the escalators at the West Acres Mall JCPenney store on November 25, 2011 in Fargo, North Dakota. The store originally advertised opening at 4 a.m., but opened at 2:30 a.m. because of the number of people already shopping in the West Acres mall due to 31 stores opening at midnight. (Chris Franz - AFP/Getty Images)加拿大华人网 http://www.sinoca.com/