Shoppers can save as retailers go head-to-head

Jeff Chiu

Holiday sales

Sale signs are displayed at a Target store in Colma, Calif., Friday, Nov. 23, 2012. Black Friday, the day when retailers traditionally turn a profit for the year, actually got a jump start this year as many stores opened just as families were finishing up Thanksgiving dinner. Stores are experimenting with ways to compete with online rivals like Amazon.com that can offer holiday shopping deals at any time and on any day. (AP Photo/Jeff Chiu)