Is any of your kids a LEGOs fan? I have one and we bought different kinds of LEGOs, and then spent lots time organizing these millions and millions of little pieces to keep things tidy. In the past, we just put all the pieces in one container and pour them out when they want to play. It’s a real hassle every time you need to repeat this. Finally I found some some LEGO Storage and Play Table ideas which helped me organize. I hope they can help you too.