I've got most of my Darkus Bakugan split between two Darkus Bakutins, a pyrus tin for most of my pyrus bakugan, same with haos, a red Bakubox for my subterra, and the aquos and ventus and whatever pyrus, darkus and haos bakugan that don't fit in the tin are in a plastic locknlock(brandname) container. As for cards, I keep duplicates in a lower level of the locknlock container, and non-duplicates in card powerhouse boxes. Definitely better than a litterbox lol 😉