I got tired of printing paper placeholders for missing cards, so I found reusable dry-erase ones instead

When I'm building binder sets I usually print paper placeholders for the cards I'm missing, but I kept having to reprint them every time I reorganised pages, and when new sets come out

I tried using reusable dry-erase cards instead so I can just write the card name/number and wipe it off when I finally pull the real card.

Works pretty well for tracking binder gaps when I'm working towards a master set.

I can show you where I found them if asked.