When I stamp or prepare for a class, there seems to be extra pieces left over. I hate to throw them out in case I need them for a future project. So I store them in these little Stampin' Up! plastic containers. They are perfect for little flowers, little punched pieces, greetings, etc.
When I use butterflies a lot... especially the Stampin' Up! Butterflies die cut and the Beautiful Wings Embosslits. There are always extra pieces and I store them in these Stampin' Up! Acrylic Cases. It's perfect...when I need a butterfly or a snowflake, I just grab my case and look for the butterfly I need.