Do You Want Your Children's Creative Projects?

I have four small children. And i know their stuff needs to be more under my clutter threshold instead of theirs. Now that the rest of the house is manageable, their stuff doesn't overwhelm me as much. But i want them to learn the habit and joy of keeping things tidy. I can't just get rid of everything so they have nothing to clean since it seems no matter how much i declater, it's still hard for them to pick up without direction. Do you think the best thing is to just go in there with them every day and keep trying to help them learn how to put things away? Or would one five minute pick up a day teach them better? Or multiple pick