Small rooms are one thing, small closets are an entirely different battle. Sure, you can get creative with racks, wardrobes, and other smart DIYs, but there’s another incredibly simple solution that can increase your storage space in minutes: the double-hanging rod. All you have to do to reap the benefits of a bigger closet is to clip the rod over the existing shelf. And if you pick an expandable version like this one, you can even customize the unit to perfectly fit your needs. Available on Amazon; $24.99.