These Are the Way to Go!
These sturdy, yet flexible, Stamp N Storage cards are fantastic! I have many stamp collections as a budding paper crafter. I don’t necessarily store my stamps by company or brand, but rather by theme/collection. I can fit countless clear polymer stamps on each of these things (and stick a sheet of acetate on the back since a lot of my stamps are not fully "seasoned")! After removing the film from both sides, you can clearly see all your clear stamps easily by holding them up to the light. I store them landscape inside one of my scrapbook.com plastic storage cases with the hinge. As my collection grows, I will continue to use these!