You can use more or less depending on your cat. Too much litter can cause your cat to sink into it or make it more likely that he will kick or track it outside. Too little litter may cause the bottom of the box to become easily soiled. Accessories Litter pads, made of vinyl, rubber, cloth, plastic, cardboard, etc. are used either in front of, underneath or around the box. Litter invariably sticks to your cat's feet and is tracked on the floor.
Some cats kick the litter with their back feet and scatter it.
This isn't a problem with covered boxes. You can get one made especially for litterboxes or use rugs, carpet remnants, the bottoms of cardboard boxes, etc. Having a small handheld vacuum cleaner next to the box is also handy. Scoops come in a wide variety of shapes and sizes. A sturdy plastic scoop is easy to use and clean.