We have bins from Ikea, but storage bins or any boxes work very well for storing artwork or paints. We have one particular for tempera paint, a person for liquid watercolors, a single for printmaking supplies, and many others. That way, I can grab just one bin down from https://artsuppliesonline.us/articles/going-green-embracing-eco-friendly-art-supplies-and-practices-for-a-sustainable-future