Paint shelves?
How about these?
Mostly MM paints, and various coatings there, and then to the right:
And some Testors hobby 1/2 oz. bottles, Tamiya paints, Gunze Sangyo paints, and other assorted toxic chemicals. Plus my decal stash sorted in boxes above.
Then just to the left of my work 'nook' :
Here are my model RR paints and other chemicals, such as glues, setting solutions, acrylic thinners and cleaners, etc. Above my work space is part of my stash. The closet to the left hold much more in the way of model kits and model RR supplies.
Just one more:
Along the top shelf on the right are automotive paints, (yes I dabbled in cars but came back to planes-same thing with the railroad models). The top shelf on the left is mostly extra and duplicated supplies of paints. All the little labels were created on my computer, cut out and glued in place. That was to help me quit buying duplicated bottles. The little red dots denote which have back-up supplies.
Not shown is a small shelf inside my work space that holds my hoarded (and dwindling) collection of Floquil Military Enamels.