Here's my collection. I don't have any sort of case whatsoever. I just keep them in glass boxes like the iPod ones :
I'm quite new to these guys, so I only have the later ones.
My poor wittle zombie Daredevil lost his hand !! so I swapped Flash's hand
Aside from Minimates, I got these Marvel Legends and Hasbro dudes
I don't really bother throwing the boxes away, so I just stack 'em up like this:
If you have any cars like these, they fit perfectly with your Mates! Tony here has a sweet ride with Pepper!