Nifty line-drying

I line-dried my laundry this summer, which cut household electricity use by half - half! 23 cents a day! - not an economic use of my time, by itself.

However, drying laundry is an amazingly effective cooler of the air passing over it and the ground it shades. (The first probably isn't true in humid areas, but it was really pleasant in a dry summer.) Since parts of the US are having rolling power brownouts whenever the temperature goes way up or down, it seems especially worthy to make line-drying easy in a way that also shades the walls of houses, so that air-conditioning demands are lower.

Looped lines along the upper stories might do it; they could go down when storm windows go up, and vice versa. An ultra-slippery net mounted behind the clothes, to keep them from picking grime up off the siding, would help. A social fashion for displaying one's expensive color-coordinated sheets would be needed (coordinated with what? One's displayed undies, I guess).

I like my towels all snappy, but something to soften them in the tumble-drier way might be wanted.