A bit more expensive than other places, but it's still this O.C.D.-gal's dream store. It's really helped me make the most of my tiny mid-town bachelor apartment.
My favourite part is the closet organizing options. Even on my tiny budget, I'm now able to see all my scarves/belts at once, and hang skirts 4 to a hanger and still leave my wardrobe browse-able. Good times, easily adaptable to rental apartments with installation restrictions.