Kmart shoppers mill around the flashing blue light, sign of the "Blue Light Special," at the first Kmart ever built in Garden City, Mich., on March 1, 1982. (AP Photo/Dale Young, File) The roots ...

Kmart shoppers mill around the flashing blue light, sign of the "Blue Light Special," at the first Kmart ever built in Garden City, Mich., on March 1, 1982. (AP Photo/Dale Young, File) The roots of ...