According to Nielsen, trips to U.S. retail outlets decreased by 1.4% in the third quarter of 2008, compared with Q3 2007. 
Declines were especially steep during the last four weeks of the quarter, which saw the collapse of Lehman Brothers, the near-collapse of Merrill Lynch, and the government bailout of AIG.
Traditional mass retailers (excluding supercenters), department stores, and office supply stores saw the most dramatic declines in the number of shopping trips last quarter vs. a year ago.  Trips to mass retailers dropped by 9.1%, trips to department stores were down …