a stainless steel film will be easy to keep clean and won't do much damge to the wall when removed. http://www.amazon.com/Instant-Appliance-Stick-Stainless-Steel/dp/B00BAUPS9M
If anyone tells you that you can save "X" with windows, throw them out of the home. Will you save something, yes. Is is impossible to tell what that something will be without a laboratory environmen ... read more