I use paper towels or newspaper in Sophie's home and Aspen in Smitty's. However, we'll probably switch him to paper towels as well b/c he still hasn't eaten for us and we don't want to take him out to feed him. It's simple, cheap, and looks ok. I did the astro carpet for awhile, but it was too much of a PIA to clean, even w/a few extra pieces.





