I enjoy the dividers by Yawghmoth, but I wanted more detail at a glance when sorting out my collection. So, I added card types to each of the colors to make it much easier to find what I was looking for.
I have sized them to fill the whole area in a standard card shoebox and for the lid to fit on without issue.
Each color has a divider for Instant, Sorcery, Creature, Enchant, Artifact, & Blank with a recess for a label or to write on. The completed colors are Black, Blue, Green, Red, White.