I always wash clothes in cold water because I am cheap. Cold water is better for the fabric and does not run up the gas bill. It also saved Nathan from a world of trouble, because the chocolate chips he left in his pocket didn't melt and I was able to get them all out before things went into the dryer. Must make lunch, drop the boys off with friends, and go to the liberry.
I always use cold water, too, but I think I eat up the energy savings in Spray N Wash because cold water does not get out many of the stains on my clothes. I seem to always have a spot of grease on my shirts that doesn't come out with cold water.
Ah well... I guess I'm not really going to worry about it.