Simple Solution Indoor/Outdoor Repellent for Dogs and Cats helps to break them of undesirable habits in the house and out of the house. Indoor/Outdoor Repellent helps to keep pets and stray animals away from areas like furniture, rugs, flower gardens, trash cans, or patio furniture. Repellent uses a powerful scent that humans can’t smell, but dogs and cats can, to help break undesirable habits.