I have two windows right next to my sewing machine, along with a design wall. Ahem, it's a sewing nook and is very small so my machine, windows, and design wall are all on top of eachother. I love the natural light, however I close the blinds for those couple of hours that the sun comes in very strong, and I keep them closed if I'm not working in there. I don't want my machine's electronics to cook, nor do I want the quilt on the wall to fade. This method has worked very well and I've never had any trouble with things fading or deteriorating.