I prefer the wood pellet litter because it is good for odor control, and I have some in one litterbox in my apartment. However, my current furkids think it is something to play with, so I find wood pellets all over the place. At the moment, I'm trying a combination of Swheat scoop (ground wheat) and World's Best Cat Litter (ground corn). They are both of a similar texture and good clumping litters, and the ferrets seem to like them. Unfortunately, both of these products are much more expensive than the pellets. I'm sure the clumping litters are easier on the ferrets feet too. A disadvantage of the wood pellets is the round shape. Just imagine standing on a pebbly beach and trying to go to the bathroom. I think it might be a bit uncomfortable for them, which is why they like to play with the pellets instead of pooping in them. When my previous ferret got sick and was just too weak to climb in and out of the litter pan, I started using the Puppy training pads for him. I would put them down in his enclosure and just change them regularly. The advantage of the puppy pads is that they have a plastic backing, so the urine wouldn't soak through to the floor. Inez currently a servant to Lola and Rio [Posted in FML issue 5206]