I put up thermal curtain panels in our living room to help keep the heat in and the cold out. It has made a huge difference in temperatures. The only bad thing is that the dogs have been missing their sunspots! Today I opened them up to let the sun in and the boys literally ran for the slivers of light that shown through. They started by simply laying in it but then started their wresting games in the spot too! It was cute to watch, They would run back to the rays as soon as a wresting move flipped them out.