Workers pack items Sunday at an Amazon fulfillment center in Tracy, Calif. Cyber Monday online sales jumped 8.5 percent over 2013. Noah Berger/Reuters/Landov hide caption

itoggle caption Noah Berger/Reuters/Landov

Customers walk out of Street Boutique, parked in Shirlington Village, Va. Street Boutique is a pop-up truck that's similar to the many food trucks in the area, except it sells clothes and jewelry. James Clark/NPR hide caption

itoggle caption James Clark/NPR

Lenox Mall, in the Buckhead neighborhood of Atlanta, used to be the site of a country home estate and is now a traditional indoor mall with two anchor stores. Madeline Veira/Youth Radio hide caption

itoggle caption Madeline Veira/Youth Radio