I store my small, easy to lose, collage images/text in Slide Pages.
Slide Pages are plastic sheets with 2" x 2" inch squares with the purpose of holding photography slides.
Not only do they store all my small bits in a simple way, but they're clear.
...and can be tucked away in a binder to save space.
If you're looking for a way to store your small images, pick up a few.