Storing MAC eyeshadows using Fig Newton containers

Are you a fan of Fig Newtons? I think they're one of those snacks you either love or hate:

If you do love Fig Newtons, then you can use the plastic tray that holds the cookies as part of your makeup storage system. This is what the tray looks like:

You can store the shadows upright like this:

Or, you can let your shadows lie flat so that you can see the colors like this:

I like to store my limited edition eyeshadows in these trays because you can see the different colors of the packaging:

The trays fit 10 eyeshadows upright and 5 shadows if you lie them flat.

The width is just the right size for a MAC or NYX eyeshadow - just snug enough so that they don't jiggle everywhere when you open up your makeup drawer:

Do you have any "do-it-yourself" methods for storing your makeup collection? If not, what is your favorite makeup storage system? Please share!