I'm waiting on a big project to start early next year, and I figured I'd use the time to improve my workbench a bit. I've been watching a lot of how-to videos, and noticed a lot of people had some sort of shallow shelf to keep their paint and glue close at hand. Using a piece of scrap black plastic, I threw this together in about 45 minutes, not counting the time spent waiting for the glue to set. I used Shoe Goo, because that stuff is pretty tough.
It's nothing fancy, but it will hold larger bottles on the top shelf, and small paint bottles on the bottom.