Very cool, Rochelle! I've never seen Zeolite litter, but I'm going to look for it. All you "ferrets and fish" types will recognize Zeolite ad the white substance that removes excess ammonia from freshwater aquariums. It's often mixed with carbon as in Awuarium Pharmacutical's AmmoCarb or sold seperately as AmmoChips. Hey! Now there's an idea! Has anyone ever tried adding AmmoChips to regular litter? It's kinda expensive to do that, too, BUT it would be cheaper than the other litter. I also recommend Arm and Hammer Cat Box Deodorizer. It's great. It transforms the $4 for 50lbs Scamp (97% dust free) brand litter into the same thing as the $7 for 30lbs Fresh Step. [Posted in FML issue 0960]