The Elfa Closet System (starting at $372)
According to Sarah Giller Nelson, the Elfa Closet System is the most versatile way to organize kids clothes, toys, and things. "I love it for kids because it can be modified as they grow." What you need for babies is different than what you need for toddlers and preschoolers. Start off with shelves and rods placed high so the lil ones can't reach things and then move them down when you want the kids to gain some independence and access things on their own.