Reply #2: I have installed the stuff

[Wash. state Desk Jet]

Installed properly it looks ok ,the stuff is dark. worked on my truck windows too !

The solution I think is new blinds-full length the type that allow you to regulate the amount of light you will except in your room and at the same time allow you to see out.

Some people just have blinds in the windows and that works for them, others add curtains more or less for decoration meaning the curtains stay in a fixed open position and are decor.

That is actually the perfect solution short of adding awnings over the windows.