Seasoned Oak asked for a source of insulating blinds http://cellularwindowshades.wordpress.com/
I bought some of their blinds with the side tracks (they qualified for a rebate). I have some regular double cellular without the tracks and some with and the ones with the tracks are a lot tighter with fewer drafts. I only wish they made them with a reflective coating on the outside so that in the summer I could use them to cut back on solar gain. In general, I like their cellular blinds better as the hardware is a bit heavier than the American brand.
I bought some of their blinds with the side tracks (they qualified for a rebate). I have some regular double cellular without the tracks and some with and the ones with the tracks are a lot tighter with fewer drafts. I only wish they made them with a reflective coating on the outside so that in the summer I could use them to cut back on solar gain. In general, I like their cellular blinds better as the hardware is a bit heavier than the American brand.