Above things have been fine.
Below is a different story.
When we moved in ten years ago I quickly painted the insides of all kitchen cabinets including under the kitchen sink. At some point there was a narrow inset shelf to the left which had been torn out and I just left the gap as is for the longest time. Until a few weeks ago when I decided I needed to freshen things up in there.
A fresh lick of paint, a strip of wood to cover the gap, new adhesive shelf liner and the originally black newspaper recycling thingy spray painted white. Aaaaaahhh!
I screwed white L-hooks into the strip of wood to hold the kitty litter scoop and the dish brush used for cleaning the litter box (marked accordingly)
On the inside of the cabinet door I mounted two trash bins. The left one has a lid and in it we throw whatever will eventually go into the outdoor composting bin. The right one is lidless and that's where the non-recyclables go.
Now it's pure joy to open the door to what used to be such an eyesore.