Hang wire shelving upside down and at an angle to hold cans.
For my Basement Door :)
Hanging shoe organizers have many uses, and holding paper towel rolls is a brilliant one.
Book shelves + rug
Before & After: Anna's DIY Custom Closet Take the Side Street | Apartment Therapy@sheena (totally put shelves to one side, would think if in middle, the hanging stuff would be hard to get to)!