I used to work with a woman who had bare naked windows. She lived out in the woods, with no neighbors in sight, and she loved having no window coverings at all. She showed me pictures of the different rooms, she was very proud of the fact that her windows were bare. Although she DID have some hanging plants in front of the windows and some shelves with plants in front of some windows, for the most part I thought that the windows looked too sterile; I feel that curtains add a lot of personality and warmth to a room. I also feel that insulated curtains are a good idea to help save energy and reduce heating and cooling costs. I’m always all about saving energy and heating and cooling costs!