I have two of the 6 x 10 wall peg boards for a total of 120 spools from Walmart. I live in the Delta and dust is a constant problem. I sewed a cover that pulls down over the thread. This stops the dust and also bleaching from the window and overhead florescent lights.
I use the small plastic containers for my bobbins. They hold 25 bobbins each. When I put thread on a bobbin, I put a small piece of tape on the end with the thread # so I can match it later.