For all my large snakes, I use old cotton sheets in the cages - yep, the same kind as are on your bed. Solids are easy to shake off and the sheet gets washed in the washer with soap & bleach. The cage then gets wiped down with a mild bleach solution and a new sheet put in. I've found that the cotton sheets are very absorbant of wastes, hold humidity well when misted and are easier to keep clean and quicken the cage cleaning process. I am now up to 25 snakes in the house - 9 in tubs on paper towels and the rest in cages of some sort on sheets. I can clean the whole lot of them, including washing the water bowls and wiping down the cages, in 3-4 hours. The large female burmese I'm getting from a friend has also been kept on sheets and it makes clean-up easier with her as well. Prior to my friend getting her, she was kept on pine shavings. I've helped my friend with her since day one and the snake has fared much better on the sheets. When we first brought her home, many of her belly scales were split or cracked and pieces of shavings were trapped under the belly scales. After a shed or two and being kept on the sheets, the scales mended themselves and she looked good as new. The only precaution that needs to be taken with large burms and sheets is that they are pushed or pulled out of the way prior to feeding to prevent the snake catching both prey and sheet and trying to swallow the sheet. Before bringing the rabbit into the area where the snake might smell it, we've always used the hook to pull the sheet to one side, prepping the cage before hand. It's probably needless to do, but we've prefered to play it safe, just in case.
Raven