We let the kids decide what is a keeper and what goes in recycling. The keepers go in the “art box” which could be any storage container in their room. When that gets full, have them go through the box and decide which ones they’re done with ... make a keep pile and a toss pile. Most times they don’t want to get rid of their stuff the same day they made it but when they go through the box later, it’s pretty painless.
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