Our experiment began in late July of 2003. So the first photo, from August 1, can more or less be considered a "before" shot.

August 2003
September 2003
October 2003
November 2003
(Aug 1)
(Sept 2)
(Oct 1)

(Nov 5)

December 2003
January 2004
February 2004
March 2004
(Dec 1)
(Dec 31)
(Feb 2)

(March 4)

June 2004 (sorry; missed a few)
July 2004
 
(June 1)
(July 1)