Here is my first foray into the cold frame world, but not my last. A friend at work mentioned that they were replacing windows, and I asked if I could have the old ones. Here is how I made use of them. This was a few years ago, but I was so amazed at how well it worked, I have been on a mission, ever since to blaze new trails into the subject. I will update this as I move forward. The first year, it was unpainted and the window glaze was falling off, but it worked so well that I gained a whole new respect and gave it some needed attention (which, as you can see, is still underway). Please feel free to add your efforts here as well.
HC