I have a storage solution I would like to share with the group for the Circuit Playgrounds. On Amazon I found sound barrier foam squares and a portable soft sided plate storage box. The foam allows me to keep the USB cords attached so there will be less wear on the connection piece. This will also allow me to take a quick visual inventory of all the boards.
I am using hard case pencil boxes. If you look, you can get them for $2 or less. I have them numbered and students are assigned a number, this way I can track proper use.
I used old VHS storage containers. Work perfectly for storing everything. And I found a ton of them for free! And it was fun to have the students guess what these things were originally used for