I spot clean my cage whenever Loki urates, but when he poos it is something else. I saw the massive pile of poo next to him, then he slithered off. So I clean that side of the cage and replace it with substrate. As I get back to the cage from the drop-off site in the trash can, I find that Loki wasn't quite done. He went back to the same spot to drop off a few more turds. AHHHHHHHHH