Hi, I saw that episode on F&P and immediately put that idea to work too. I love it! I extended the idea a bit for my purposes. I mostly use cotton thread but occassionally use poly. I write "poly" on the white reinforcement label when I stick it on the bobbin if the thread wound is polyester (I do not write anything if the thread is cotton). Now, when I pick up a bobbin, I know if I want to use that on my project or not (I don't use poly on my quilting projects.) It saves me a lot of angst!