A spray bottle filled with water is one simple home remedy to keep cats off furniture. The quick squirt of water is enough to teach the cat and is safe and effective.
There are also furniture treatments that can be done to deter cats. A solution of one-part essential oil to three-parts water can be sprayed on furniture. Essentials oils like peppermint, citronella, lavender and lemongrass are all natural cat repellents. It is important to spray a small amount on the fabric of the furniture before covering the entire piece to make sure it does not damage the upholstery.
Using double-sided tape on trouble areas also keeps cats away. Cats learn quickly from the feeling of the tape on their paws. This method isn't the most visually appealing, but it does provide continual coverage while pet owners are away. Because cats are experts at finding their way around obstacles, the double-sided tape method can be used effectively to build a complete barrier around furniture. The tape can be used on practically any surface and in a variety of creative ways. Aluminum foil and sandpaper also work in a similar method but do not stay in place as well as tape does.