I’ve had the same beige walls in that office since I bought the place and I was finally tired of looking at the drab color and bought some green paint.
Turns out I hated the green paint, so I bought some blue paint. While I was moving out the only bookcase I had in the room it disintegrated into a million pieces. I was already planning on putting up some shelves, but this cemented my plans, which you can see in the final picture.
I think it turned out great, my wife gave me a LOT of great help, which I really appreciate!