Arrange sewing thread
I have terribly annoyed about my sewing box: 1000 sewing silk rolls cluttered confusing! I wanted to sort the roles by color and size.
Suitable for this are transparent audio cassette cases. The two inner cassette holder I have with a small diagonal cutter cut out, my thread spools fit in, they are neatly stowed away, and I can immediately pull out the appropriate cover in search of the right color!