** FILE ** Tashalee Rodriguez of Boston uses a smartphone app while shopping at Macy's in downtown Boston on Friday, Nov. 23, 2012. (AP Photo/Michael Dwyer)

Photo by: Michael Dwyer

** FILE ** Tashalee Rodriguez of Boston uses a smartphone app while shopping at Macy's in downtown Boston on Friday, Nov. 23, 2012. (AP Photo/Michael Dwyer)