My DS has just turned 3 and I think he's finally ready for potty training. He's used the potty several times now and is always very pleased with himself. A few times he has said I need a wee/poo and runs to the potty so he obviously knows when he's going. Sometimes he just does it on the floor but always comes and tells me straightaway. He will happily run around naked for an hour or two but then gets quite upset and wants his nappy back on. I always just put it back on at this point. I'm not sure what to do, keep doing what I'm doing or tell him there are no more nappies and he has to use the toilet from now on?