With all three kids in one 11x11 room (and every single toy, book, and item of clothing sharing it as well), floor space is very limited. So we take advantage of every inch underneath the beds to free up space and reduce clutter! (one bunk bed and one toddler bed) Also helps keep random clothes, toys and junk from collecting under there and having to be cleaned out.
Planning: Closet for Two - Whether it's for kids or for a his-and-hers, a shared closet works best when territories are clearly defined. Place a tower of drawers in the middle of a reach-in closet, which will give each closet occupant their own side of the closet. Assign drawers to each person to achieve shared-closet bliss.