Swheat Scoop Natural Cat Litter
We use this in our 2-cat household. It's definitely pricey, but worth it for me. I like that it's biodegradable, natural and flushable, yet clumps pretty well. One thing to watch out for is that it may stick to the bottom of the litterbox if you don't add enough litter...helps to sprinkle some baking soda or litter powder on the bottom of the box first if this happens. Best of all, there's no more terrible clay dust to set off my allergies.