Yesterday's News Cat Litter (30lb) www.petsmart.com - $14.99 (30lb) Product Description: Made from recycled newspaper, this vet recommended litter is great for kittens and cats after surgery. Pellets also reduce tracking, and eliminates the messy clay clumping and litter box cleanup. RattyRat's Review: If you use litter throughout your whole cage, don't choose Yesterday's News. This litter consists of hard pellets which are extremely uncomfortable for your rats to walk on. However, we highly recommend Yesterday's News if you're using it in litter boxes (if your rats are litter boxed trained.) This litter is almost dust free. It has decent odor control. It's easy to find, and it's very cheap. Be sure to get the cat litter, not the small animal litter, because it is the same litter, and the cat litter is much cheaper!