I recently switched over to vellux and fleece liners for my guinea pig cage. The girls LOVE it! It looks a lot nicer too. I put down newspaper, a couple puppy pads where they pee a lot, and then the liners on top of that. Also added some litterboxes with shavings, I hope the girls figure it out! I'd love to stop using shavings for the entire cage, it gets expensive! I will let you all know how it works over time.