What''s the best way to make Iced Coffee?

When I started sweating heavily during my morning walk to the subway and began considering a set of "commute clothes," which I imagined would be composed of a pair of running shorts and a tanktop, I figured it was time to stop trying to drink a steaming hot cup of coffee on the way to work.  There is simply nothing more miserable than thick New York humidity, being full of sweat, descending on...