Pet Smells
You may not notice that Mittens and Rover have irrevocably altered the odor of the living room, but potential buyers certainly will. If your pets have had any accidents in your home, make sure you invest in a deep cleaning of the area so that your home doesn’t remain haunted by the smell.
After the cleaning, ask a non-pet-owning friend to tell you truthfully if your house still smells of eau-de-cat-pee so you can potentially replace carpeting or other items that cannot be cleared of the smell. Otherwise, you might wonder why no buyers are interested in your otherwise perfect house.