Slideshow: Americans line up for Black Friday

Employee Neal Smith, center, yawns before the midnight opening of a Best Buy store in San Diego, California on November 25.

Customers gather and wait for Sears to open at 4 a.m. at the West Acres Mall in Fargo, North Dakota, on Nov. 25. Over 30 stores at the mall opened at midnight.

Shoppers line-up at Target in Lisbon, Conn., for Black Friday bargains late on Thursday, Nov. 24. Black Friday began in earnest as Target and other stores opened their doors at midnight.

Landry Spitler (front left) Riley Spitler (left center) Megan Davis (top left) and Laura Davis (far right) show signs of fatigue while they wait in line for a cashier at the Target store in Mesa , Az., on Nov. 25.

Shoppers ride an escalator at a Target Store in Chicago on Nov. 25.

Black Friday shoppers wait in the check-out line over an hour, after waiting in line to get in and then fighting huge crowds at the Toys-R-Us store at the Fair Lakes Shopping Center in Fairfax, Virginia, which opened up at 9 p.m. on Nov. 24.

Barbara Riccelli sits outside her tent knitting while camping out outside the Best Buy store waiting to be the first ones in line when the store opens at midnight for Black Friday in Mesquite, Texas, November 23, 2011. Riccelli has been camping out for four days, along with four other tents.

Barbara Riccelli, Vicki Hawkins, and Vicki Lawrence, sit outside their tents while camping out outside the Best Buy store waiting to be the first ones in line when the store opens at midnight for Black Friday in Mesquite, Texas, November 23. People have been camping out for four days, along with four other tents.