I've been using 110QT/104LTR bins for my cats. They're high (no tracking or anything outside the bins) and long and hold a lot of litter. I switched after I saw them in a rescue place I volunteer at. Works like a charm!!! Maya Linn pees on the side (inside) the bin. The highness of it prevents it from going outside the bin. I have 3 bins for 7 cats. Shoulda done it years ago!!!!

Good luck! My Spikerdude is a shower pooper. I'd rather have it in my shower where I keep a spray bottle of bleach than on the carpeting or my bed, etc. I can always tell when he goes and remove it immediately. I have a feeling that's why he was dumped. I love the boy and wouldn't THINK of getting rid of him!! The shower is EASY to maintain with lots of hot water and bleach.