Thanks all for input. Yes, Lee-Bee, there's a lot going on in the room, which is a huge part of my question. While I wipe her before sitting her on the potty, she's up and down on the thing until she's finished which is resulting in the mess - she gets all excited and wants to show everyone as it's happening. And when I have to leave the room to go empty and clean the potty all hell breaks loose in the room (her older sister is quite sneaky and waits to do something mean once she thinks I'm not looking - which I'm not when I'm dealing with the potty). Yes, it is a lot of effort for a family leaving.