Just an fyi: There's a white blacklight powder you can use on light fabrics. In normal lighting, the powder looks white, but when you darken the room and shine a blacklight on the quilt, the powder glows green, is very easy to see and follow. I use it longarming, and save $$ by mixing it with the ordinary white powder. Afterwards the powder brushes off or can be vacuumed, etc. just like any other powder. You don't have to have a longarm to use this powder when quilting. Try it, you'll like it!