Updated 9/18/25 Kitty litter used to be so simple. When I was a kid, it was my job to tear newspaper into strips for the cat's box. Easy peasy. Then they invented clay cat litter, and later clumping clay litter, and cats became America's favorite pet thanks to their adaptability to apartment living. But clay litter has problems (which we'll talk about in a minute), so companies have come up with a wide variety of alternatives. Kudos to the folks who are trying to make a cat-friendly litter from non-toxic ...