Customers pile purchases into their carts at a Best Buy store in Burbank, Calif., on Black Friday. Cyber Monday, Green Tuesday and Magenta Saturday have become part of a color-coded shopping experience between Thanksgiving and Christmas. (Associated Press)

Customers pile purchases into their carts at a Best Buy store in Burbank, Calif., on Black Friday. Cyber Monday, Green Tuesday and Magenta Saturday have become part of a color-coded shopping experience between Thanksgiving and Christmas. (Associated Press)