I LOVE the thread boxes that Artbin is making, and they are made in the USA. I especially love that I can get a "cube" to keep the boxes in and roll it between machines. Right now, Amazon.com has the boxes for $15.27 and they can be bought on Prime, if you have the membership, and shipped for free. That's half what they are at Joann's.
I have two already and thinking about ordering a third, since it's a good price. Also, considering ordering the double deep satchel to store my fat quarters ... I thought this was a fabulous idea. :-)
Here's the cube if anyone's interested ... you can buy casters for it as well.