I've tried LOTS of litters over the years. All sorts of scoopables, the crystals and Feline Pine, you name it.

Up until about a month ago, I used Premium Scoopable Cat litter. It came in 50 pound bags for $10. Then I decided to switch to Feline Pine for a few reasons. First, there's absolutely NO dust, and I've noticed that my cats aren't sneezing anymore (hmmmmm, there MUST be some connection there). Secondly, with the Feline Pine, which is compressed sawdust pellets, you only need to line the box with 1 inch of the stuff. When the cat urinates, it not only absorbs the urine, it also absorbs the odor (no, there's no pine smell either). One 20 pound bag does 6 boxes. The only thing you need to do everyday is remove the solid waste. At the end of a month, or whenever the stuff turns to complete sawdust (no pellets left), you simply dump the whole box and start over.

It was very easy to get my cats used to it too. I have 7 litterboxes and put the new stuff in 4 of them, and the clumping stuff in 3, so they'd have a choice. Gradually I changed the litter to the Feline Pine and the transition went very smoothly.

As far as expense, a 20 pound bag of the stuff is $7.99. they also have another brand (same exact litter) called Exquisi Cat Enviro Friendly Litter which is even cheaper. A 20 pound bag of that is $5.99 at PetSmart.

I've found there's absolutely no dust and less litter on the floor.