I have noticed that many quilters have their sewing machine set up in front of a window. I do too since I love the great light and also I have a beautiful view. But,,,,,I just recently took a class where the teacher cautioned against this. She said that the sunlight will yellow or discolor the back of your machine (or whichever side you have facing the window). It will also dry rot and bleach out the thread and fabric if they are left there for any length of time. Never thought about this before but it does make you stop and wonder. What are your thoughts?