I have several ways I keep my spellbinder dies. I have a peg board. I have a magnetic bulletin board. I also have two full Art bins and plan on ordering a third. For full use of the sheets, open the bin and let the sheets spread out at the opening (don't pick through the stack as this will cause all kinds of problems), file through the sheets, pull out the die set or sets you want to use. It is convient to keep the sheet out and replace the dies as they are used so they don't get lost. Also dies can be kept in sets. If the sheets were magnetic on both sides, the sheets would stick together. There are just a few tricks to use the art bin efficiently.
The person who invented the magnetic sheets for the art bin is a genius. My drawers were a mess of spellbinders dies that I kept in the original packaging but could never find the one I wanted and when I did, it was a hassle to get it out of the packaging and then get it back in. Now my dies are neatly on my desk in the art bin, not getting bent or damaged, within arms reach and I can easily reach the size and shape I want. I feel like a new woman.
Trying to keep up with all my thin dies has been a real pain - until now. I've seen lots of options, but this is actually workable, and affordable. The magnetic sheet is the same as the ones you can buy at any craft/hobby store, but they are cut to fit perfectly in the case. I really like being able to see my dies easily, with out having to open up envelopes or individual cases. I have 9 sheets and there is still lots of space after my 125 dies.
These sheets and the Art Bin case are the perfect way to store and carry my dies at home and when traveling. I keep my dies sorted by whether they're shapes such as hearts, stars, ovals, etc. or designs such as swirls, beach themes, and flower borders. I like being able to add the magnetic die sheets as my die collection grows.