We've had all our dogs since puppies and it's easier that way, you don't have to break any bad habits. However our female Setter is VERY dominant, and she will only listen to me, because Daddy spoils her, and sometimes she won't even listen to me! That's when we start using NILIF, which stands for nothing in life is free. Pretty much that means that the dog doesnt get any special treatment, she can't get on any of the furniture, has to sit before she goes outdoors, has to do something in order to get fed, or pet or anything. It's a full time job when we're doing NILIF, and sometimes it's hard, but it's definitely worth it.
Ang