Many times I'm in a coloring mode, just want to color and color, and color. So, I have lots of images that I have colored and cut out. They are waiting for a card to be placed upon. I used to keep them in a little plastic bin. I would get frustrated looking for that one image I colored just that way.
This idea hit me when I was organizing my stickers. I bought a package of clear page inserts for stickers (I didn't get the album, just the inserts). The package included different layouts of pages to accommodate different size stickers. I thought I could also use this for my images!