Well, Wal Mart sells the plastic see through cases for matchbox/hot wheels cars. I bought those for $5.00 each and my Mettler threads are stored in them. They lay flat so you can see the colors and fit perfectly. I have seperate ones for all purpose, embroidery and quilting threads. I never buy the "sewing/quilting" storage containers, I look in the sporting goods department or in the toy section. Much cheaper.