I know what I'll be using in the future:
It might be a bit of a faff for something that may not last that long, but for a rented place it's perfect. And since we are planning to rent for a good while yet, I can see it coming soon to a window near me!
This idea and the image above is from a book called Patterns in Design, Art and Architecture and were created by textile artist Claudia Caviezel.
Via My Weblog, via Apartment Therapy.