I"m working thru my bobbin storage now. With 5 different machines that I'm using regularly and different types of thread, I'm started just putting them in small ziplocs with the little pony tail holders around them and labelling them as to what thread it is. Then I put them in the box for the correct machine with the feet and whatever else I have for that machine. I love all my machines but it has made some things complicated. I think I need to make a trip to the hardware store to pick up more plastic boxes to store stuff in.