In my collection, the volume has grown considerable over the past several years. I've decided to separate the 3Ds from the 2Ds and then place the 2Ds into genre categories and with the 3D blus, I have two divisions of "Children 3D" and just, "3D" then sorted alphabetically. Most of 3D blus not designated for Children are rated PG-13 or higher. And to boot, I have built floor to ceiling
library shelves. If you decide to click the link, scroll to the bottom for a shot of the images. The library has been updated so it does not look like that in the picture, but it will give you an idea how I manage my ciaos at home.