For my fellow Hot Wheelers I thought I would post this up as I found it quite useful for myself.
On a recent trip to the reject shop I found these containers which are perfect for storing your MOSC cars. They cost $15 which isnt too bad considering most storage container prices. I have been looking for something like this for quite a while since my current method of 'box' doesnt quite measure up. And whilst I do like the idea of wallstacking the fear of dust and where this could fit in my house outweigh it.
You could almost say these containers were made for this purpose and even better it allows for easy visibility. Stacking is also easier than a cardboard box.

Hope this helps someone else out here as well