Thank you for the tablecloth backing idea - that is what I'll use for this weekend anyway. I want to have the insulation sheet so that it will be portable. In other words put it on my bed, stand it against the double closet doors in the bedroom or use it in the hallway. The person that wrote in last week or so said it cost her only about $3. and then a lightbulb went on that about 8 years ago my husband made me window cornices from that pink stuff and we put batting on front side and then drapery fabric. They were nice and light to hang over windows and although I don't remember what he paid, he didn't spend much.
Thanks Victoria