Glad you found us! You have already received many wonderful responses. This is a great place to learn about yorkies!
Just a couple things to add - the reason you may want to put clothes on your baby is that yorkies have hair not fur like other animals & often need help keeping their heat in.
Also, not sure what method you are using for housebreaking you may want to consider crate training - one of the most successful ways to work with a puppy