Puzzle storage!! Best way to store kids puzzles! Buy some Legal size poly expandable envelopes. Remove the string and replace with Velcro circles. Place in a bin or on a shelf. My rule is one out at a time. The envelopes are easy enough for my two year old to open and clean up himself.
Combined an Ikea Trofast toy storage ($40) with Ikea's Bekväm spice racks ($4 each) and now we have a toy storage with built on book shelves! Save space and TONS of money! My favorite feature is that my toddler sees her book covers since she still can't read the words on the book spines!!! LOVE!!!