Replace Curtains with Eclipse Windshield Shade
My wife and I finally could not stand battling with the lower alumninum curtain track. I was in exactly the wrong position for relaxing on the rear gaucho. So out it went. I replaced it with a Eclipse windshield screen designed for vehicles. It is aluminized and reflective. I used a 1" piece of aluminum angle iron to attach velcro for the closure. Only drawback it is either fully open or closed. One set costs about $50, and is good for 2 windows
I intend to add Reflectix insulation covered with silver upholstery vinyl to cover the ugly wall around the window.
Sail on silver girl. Sail on by. Your time has come to shine.