I got really excited to use the Animal Crackers one as storage for my son's blocks. The blocks originally came in a cardboard box, so future storage was up to us to figure out. The colors of the blocks look really cute inside the clear container and the red lid matches his room nicely! Plus, it's easier for him to help clean up when he can just toss his blocks in at random rather than trying to make them fit nicely back into their a much smaller box. Actually, it's easier for the both of us as I wasn't having much luck with the small box either!
Our PAT (Parents as Teachers) Educator recommends having simple blocks like these in contrast to all of the toys with lights, noise, etc. They encourage imaginative play, stacking, color recognition, etc. The set we own is by Melissa & Doug. We love them! My son will take a simple rectangular block and "fly" it around the room pretending it's a plane... she was right -- oh how I love a little creative mind! :)