This window faces West and at certain times of the year the sun glares into the kitchen. We needed something to cut the glare, so we hit upon this solution. So what is it, you ask?
See the box above the window? It holds a map like you had in elementary school, and when it's sunny we pull down the map and it not only blocks the sun, but gives you a geography lesson as well.
One layer has the World, and the other has the United States. I'd like to get Europe and the UK eventually; there's room in the box to add them. As a map lover, I believe one can never have too many maps.