Pestell Easy Clean
My cat was peeing all over the place and we were at our wits' end. I bought this litter in desperation and so far it's working! I already had three different litter boxes set up in a closet (a recommendation I found online and I was trying *everything*). When I put this litter into one of the boxes, my cat started using it consistently and ignoring the other two, which previously she had (occasionally) used. One piece of advice that I read online that I think is very important: you must use this litter alone and not mix it with another litter - if you mix it, you mess up the scent that attracts cats and it won't work.