If at all possible, use paper dividers, compartment storage, and shelf risers to avoid having items stack and pile on top of each other.
AVOID CREATING SPOTS WHERE THEY CAN STACK ITEMS ON TOP OF EACH OTHER
Paper organizers with drawers come in handy to separate types of paper they can grab for all their projects. We go through a lot of paper now that we are homeschooling. They are always drawing, writing, and folding paper in their free time.