Hi! A few years ago when I began to figure out ways to reduce spending I figured out some ways to reuse the bought kitty litter, and also to quit buying it and find stuff around the yard that can be used and then composted. All sorts of organic matter like sawdust, corncobs, cedar or Doug fir needles, leaves, twigs, can be used as litter. I use cedar needles since I have a big cedar tree in the front yard. There is a book in the library that had a long list of substitutes for the bought kitty litter. Unfortunately I don't remember the title.

I do keep this compost pile separate from the regular one since cats can carry various questionable bacteria in their feces.

I "used up" my leftover used kitty litter - instead of just putting it in the trash- by washing it in rainwater, separating out the feces from the clay-like gravel, letting it dry, and using this gravel to augment the soil in the garden for plants like peppers which like a sandy gravelly soil. The feces I just put into the "cat" compost pile. From Linda PS My peppers these past two years have done well with this method.