I learned something new today. Maybe it's common knowledge out there in the wide world, but it's news to me. I use Yesterday's News, and the clerk at the pet supply store told me that the EXACT SAME LITTER costs less if you buy the"cat" litter bag. You get 20lbs of "small animal" litter for $15, and 30lbs of "cat" litter for $12. What's the deal with that?? I opened the bag when I got home, just to be absolutely certain that it was the same stuff, and it is. Guess I'll be buying the kitty litter from now on!