Cotilda sold a needle minder a few years back that sticks on you machine. Plastic about 1.5 inches square with needle sizes and type on it and a little arrows to move to let you know what needle in the machine. I'd be up a creek without it since I can't read the needle anymore either. Do have a jewelers eye piece in my sewing desk drawer in case I do have a needle and don't know it's size. Have never had the arrows slip to another position on me either. Don't know if they still sell it but I sure love mine.