Cereal Boxes!
A few years ago, I built a custom shelf to hold all of my minicomics. This has worked quite well, and it was a huge step forward in getting my minicomics organized.
When Claire moved in with me however, she complained that the shelf was inscrutable. Although the minicomics were separated by size, there was no other cataloguing system, so it was impossible to find a specific minicomic, or if she found one she liked, she couldn't find another minicomic by the same artist. I vaguely knew where everything was, in the same way I know where everything is on my cluttered desk, but this didn't help Claire out.
When we moved from Vermont to Oakland, I used it as an opportunity to organize my minicomics once and for all. Instead of just throwing them willy-nilly into boxes, I sorted through everything and placed minicomics by my favorite creators into mailing envelopes. I had about a hundred of these, each with a few minicomics in them. The rest I put into boxes.
Ever since we set up our apartment in Oakland, I have been saving cereal boxes, which I then cut down and label, so that they can hold minicomics. I have about 50 so far, and it has made a world of difference. I can easily locate anything I need, I know where to put it back when I'm done, if I get a new minicomic by one of my favorite creators I have a place to put it, and Claire can finally decipher the collection. Once I have all of the artist envelops moved into boxes, I'm going to create some A-Z boxes for the miscellaneous minicomics that are still floating around unsorted on the other shelves.
Anyway, this is an inexpensive and fun way to help organize minicomics, which I thought people might find useful, so I thought I'd share!