I personally use paper towels and then I give Harley a towel as her floor. She loves it and usually will just stretch out and go sexy legs(when they stretch their back legs out straight, showing you some leg) and usually watch tv lol. Towels are easy as I just throw them in the washer ones a week and bam, clean. Of course Harley refuses to poop in her cage and will pace like crazy when she has to go poop. So I take her out and let her soak and she drops a huge deuce. She only poops once a week though so I guess im lucky.