I went out last night and bought some blackout material (Joan fabrics)and it is loaded with wrinkles and so forth any suggestions and how to get them out? I have it hanging now and plan on making a frame but I do not think this will get out all of the wrinkles, this is all they had in stock. they suggested putting it in the dryer (low temp.) for a while. also I have it over a window and some light still gets through. thanks.