Perfect for storing lots of small pieces! Right now, Amazon has this Ravensburger Sort and Go Jigsaw Puzzle Set for only $7! (Reg. $21.99) Here are some additional details:
For puzzle lovers who love to keep organized, the Puzzle Sort & Go Sorting Trays are only $10.74! This handy kit allows puzzlers to sort, link, stack, and store puzzle pieces and even bring them on trips, so you no longer have to leave an unfinished puzzle behind.