I have a gadget I bought several years ago called a Needle Grabbit. It is a heavy magnet covered w/a sheet divided into rectangles with the type of needle in use, i.e., Universal, Stretch, Ballpoint, Denim, Microtex, Quilting and Embroidery with several blank rectangles. You write in the needle size w/marking pen. A small magnet is attached to the board which you use to indicate what size needle you are currently using. For instance, say you use 4 different size universal needles. You would write 100, 80, 90 and 70 in the four universal rectangles. If you are currently using an 80 needle you would place the small magnet in that rectangle to show that's what's in the machine. Wish I could explain it better or take a picture but not that savvy with the computer. This was made by blue-feather.com but many years ago. Don't know if they still make them but you might inquire.