I really like ArtBin products, but that's a pretty spendy storage solution. I use one of those old magnetic photo albums. I keep the set on its backing card (Holly, you can write or label the number of dies in the set, or keep the front panel, too) & pop it into the album. An 18-pager will hold 36 sets, & it tucks neatly under the drawer of my computer hutch. Best part is, they're super cheap. If you want to keep it closed to carry it, just wrap an elastic headband around it.