Usually what I do is keep a spot in the back of the truck reserved for the box all that stuff came in. Then they get moved in there. If I need to use the rear seats or that area for any other reason, they move to the outside storage compartment on the TT, which has since been vacated of other stuff.
When at home, the box goes on a shelf in the garage. If I didn't have a box...I'd probably get one. I like the idea of a hanger though, but still when at home I'd need the box anyways.