Ah, a timer is a good idea, he's resisting going at the moment because he doesn't want to break play. So we've gone fully no diapers for the first few days so the undies don't remind him of wearing a diaper. It's very hit and miss at the moment 😅 , we've just got to be super eagle eyed for the signs. We've got a sticker chart to track pees/poos, then after 5/10 there are treats. Thanks for the tips!