If you have a small home & cats, then you probably keep the cat food and litter box in your laundry room. That can take up a lot of valuable space, so stack up that food and litter box on a shelf. Found on Southern Sprout.
use two shelves from one of those wire shelving units and zip tie empty thread spools in all four corners and the middle. Awesome idea for wall storage! I have a ton of empty thread spools I've been trying to think what to do with!