"Out of sight, out of mind" is an easy enough trope for adults, but for kids, it's guaranteed that if they can't see it, they don't remember it exists. To that end, Marie's method of folding clothes upright, versus stacked one on top of each other, is a genius solution for clothes and toys – think puzzles and board games. That way, the next time they open their drawer, they can see all their shirts at one glance instead of just the top of a pile. A hidden benefit is that, over time, they'll make less of a mess of the clothes inside – no more upending an entire stack to get one shirt from the bottom – and have an easier time putting folded clothes away.