[Gareth]

I've hoarded an array of takeaway containers. Each one comfortably holds a 1/32nd car that is awaiting work although you might need a deep one for a taller car. I also have other containers for wings or wheels or guides. They stack easily on shelves and because they're clear it's easy to see what's inside. 

It also means that you can take down a container, work on the contents and then put it back when you are finished.

Forgot to say though that the Hobbyzone system does look amazing. Very nice indeed.