Use all natural repellents to keep cats off your furniture. Fill a spray bottle with vinegar if you see your cat in the wrong spots. Vinegar is a deterrent for cats and a deodorizer that cleans the air around your furniture. Vinegar is a natural product, so you can spray it on the plants in the garden, too.
Basically, find any smell that is detested by cats and put it in a bottle. Spray it on any surface where your cat is not wanted, such as the couch, the kitchen counter, etc.
Cats tend not to like the smell of hot spices. Sprinkle a handful of cayenne peppers on the places where they are unwanted. You can also use coffee grounds since cats do not like the taste either. Mix lemons, rosemary and cinnamon oils in a bowl and then place the scents on the furniture. Many cats detest the smells of certain dried and fresh herbs. As an extra benefit to you, the fresh scents freshen up a room that a cat has visited.
Using all natural ingredients is recommended because you do not want chemicals to damage the furniture. Typical household cleaners contain cocktails of toxic chemicals, such as ammonia and hydrogen peroxide, which are harmful to people. Make sure you reapply these natural repellents every week or so.