I use a big glass casserole dish with some aspen shavings in it. My chin doesnt use it much, though. He's started to pee in it MORE, but mostly he just flings the shavings everywhere... ^^;; He's 8yrs though as as far as I know, was never introduced to a litter box in his previous homes. He's kind of a dork about where he pees..... he'll pee anywhere, even places where it won't get absorbed, and he doesnt even care that its there, he'll just... run back through it.... >____>;; His belly's a bit stained because of that unfortunate habit. I continue to try, though. I havent noticed as many marks on the fleece from urine as of late, and I've seen more urine in the tray, so.... maybe he's starting to catch on? I always leave a little bit of sioled bedding in when I change the pan, so it smells like pee.