Buy Magnetic Vent covers from the hardware store. There are 3 - 8" x 15" sheets in a package and you should get a total of 9 from one package for $5. They have white on the back so you can write sizes on the back. She cuts hers 4 3/4" x 7" to fit in storage container.
"I purchased a few of these portable photo organizers at my local craft store and converted them into a storage solution for my steel dies (e.g. Spellbinders, Cheery Lynn, MFT, LLLC, Memory Box, etc.) The container includes 16 individual compartments to organize your dies. It's a great way to keep your dies in order and the container easily transports to crops and events!" ~Arlene #graphic45 #craftorganization2014