Avalanche had some very interesting
things to say about Best litter?:

Is there any reason, other than it perhaps gets kicked around easier,
that sand (clean, of course) sand won't suffice?
Any particular benefits to more expensive litter? Tho I've had cheap
dusty litter.

We've found that crystal litter does much better at odor control.

--
"The universe is quite robust in design and appears to be
doing just fine on its own, incompetent support staff notwithstanding.
:-)" - the Dennis formerly known as (evil), MCFL