I've tried pretty much everything under the sun. I'm very sensitive to the scented litters and so are my cats so I have to use unscented litters. I've also found that the clumping litters are best because they remove all of urine. I've been using Dr. Elsey's Precious Cat Clumping Litter for several years now and it clumps very hard and is pretty good with odor control too. You can buy it at Petsmart. Since my cats eat a high protein diet they do make very stinky stools so when it's fresh it does smell a bit so I always keep some Oust on hand to help clean the air. I also scoop 2 times a day.

Many people here love Fresh Step or Arm & Hammer. Yes, they clump well but they are just too heavily scented for my nose and my cat Sky is also very sensitive to this too. Just try a brand and see what works for you. Do you know what kind of litter your cat was using before? Good luck.