No matter how true your intentions, the term minimal mom often proves oxymoronic. Muji, the Japanese emporium of things simple and orderly, may assist your quest for less. The store is stocked with stacks of plastic boxes and bins (no-brainers for holding art supplies) and eco-friendly wood-pulp bookshelves. Shop and you'll believe: Life really can be filed neatly in a Lucite box.