Thanks for the info and link DeeElle. I think the clearcomfort option comes in at around $25 which is sooo cheap, I can affort to give it a go…

Thanks DeeElle, I'm so new to this I haven't heard of your comfort plus glass either. I really was expecting to get info on fabric window coverings…

Thanks Steve and Cabinfever, I haven't heard of Clearcomfort before and it looks great. Do you know if there is any visual distortion (through the film)?

I need to find a window treatment with good insulation against the cold (protection from external heat is not really a problem).
The room is a small bedroom (for male…