Re: need a rec. for new kitty litter
We use World's Best, too - it does track a bit, but in my experience it is not too dusty unless it's from the bottom of the bag, or the last bit left in the box. I do appreciate that there's no perfume smell. In our household we are so sensitive to added perfumes and fragrances that the corn dust is not a bad compromise.
I think if you have lots of cats in your family World's Best might not be the most cost-effective choice, however. I fairly sure that there are a few others from natural sources which may be less expensive. We haven't researched it because Gracie doesn't go through litter all that fast, being just one kitty...