Wonder Hangers, and can share that they do just as promised.
The plastic hanger allows you to place 5 standard hangers on it, then by releasing one side, the clothes cascade down and leave more room in your closet! I found they work best if you set them all up, then move them down but don't add any more clothes to your closet! It definitely makes your closet neater.
They also work great for holding purses (of which I have a ton, because I'm always on the search for the perfect purse.) They are sturdy and work with any type of hanger.
You can find them at Wonder Hangers. If you buy them online, you can buy one set and receive a second set for just the cost of postage and handling. They're also found at Target, Bed Bath & Beyond and other large retailers.
Disclosure: This is a Mama Buzz review. The product was provided by Wonder Hangers for this review.