Jennifer McGuire die storage video is below. I basically do what she did in the video, with a different box. I didn't see magnetic sheets - maybe they're from an earlier or later video?
I just use the square pockets with a cardstock backing. SSS sells cardstock inserts that fit or you can make your own. Sometimes I cut off part of the package the die came in that has the company and die name, and slip it on the other side of the cardstock for reference.
So far I've put dies that are too tall in the same envelopes in the back of the container. They just stick up a bit. I might switch them to Avery Elle pockets, which my stamps live in.
I haven't labeled them since I don't have tons, but next time I'm in a labeling mood, might do so. (Last time I wanted to label I labeled my husband's coaster on the end table with his name, so the addiction can be dangerous.) ; )
Enjoy!
Video: Die Storage + Giveaway - Jennifer McGuire Ink