Clumping litter should also be scooped daily and the litterboxes washed when soiled. Choose a litter that appeals to the cat. Most cats prefer the texture of the sand-like scooping litters. Be sure to choose a brand that clumps into a firm ball, making scooping easier and cleaner. Use caution with scented litter.
Most cats have an aversion to perfumed scents.
When you wash the litterbox, use a mild dishwashing liquid. Do not use harsh chemicals that will leave an odor. Do not use litterbox liners - they can be irritating to some cats. Also covered, or hooded litterboxes may be offensive to some cats. Be sure the litterbox is not too small for your cat.