Empty. Empty as in nothing in them. Who knew?
(Not me, because they were - as you can see - r u b b e r b a n d e d shut when we bought the house 2 1/2 years ago, which everyone knows is the universal symbol for full of junk like all the other shelves were.)
Well, they aren't empty now. So instead of this, we now have this. Not beautiful, and I still have the other 3/4 of the garage to tackle, but for no money spent and less than an hour of work? Light years better. Yee haw.