To keep the cage clean elsewhere, lay down layers of newspaper first, and after that, cover the newspaper with needlepoint canvas which is sold in the craft section at walmart too. I buy a few packs, as 6 sheets come in each pack. You can take these sheets out and wash them in dish soap. The litle holes will drain any urine should they pee out of the box and the newspaper absorbs the urine. Change the papers out every other day unless they do not urinate on them and this way you can go a b