I treat pet products exactly like my own human products (and in-line with Marie Kondo). Firstly, everything with labels is put away, either in a closet or in a cabinet. Labels add visual clutter and creates mental exhaustion, making the space feel cluttered without actual things in the way. Then, I'll incorporate any cat trees or "catification" elements (as Jackson Galaxy calls it!) in the closest color to the interior design color schemes of my home. For example, I'll find cat trees that are a beige, earthy color because it best complements my color scheme of purple, blue and beige/taupe in my living room. Any uber-functional needs (i.e., my Litter Robots) are away from site in a nice corner behind the couch. It has to be a good balance of being easy to access and also not in the way -- sometimes it takes some moving around a little bit, just like you would any other type of furniture piece!