DS TT at just over 3 years old (he was 3 in september).. in 1 day. I tried TT him a few months earlier and i had to constantly remind him and even then he still didnt get it and kept having accidents. So i held off.. waiting for summer really. Then he just told me one day he wanted to go to the toilet. So i took him. That evening i put undies on him at home and he went to the toilet. The next day he did it all day. And ever since has been the same. He wears pull ups to bed but i havent had a wet one in over a month. He gets up during the night to go to the toilet. So as for how soon for poos.. from word go. I believe as they say, "he was ready".