These are all great methods of teaching
your puppy that biting is BAD. However,
the most important part of training your
puppy at this point is CONSISTANCY. Once
you have started to teach your puppy that
biting is unacceptable every instance of
biting (or mouthing) must be reprimanded.
Every family member must be taught how to
reprimand your puppy's bad behavior and
praise good behavior, and be consistant,
no matter how cute the puppy is. Most
importantly do not allow ANYONE to permit
your puppy to mouth clothing or body parts,
even if they say that they are just playing.
The behavior can change when the puppy grows
up.

The more attention you pay to your puppy now
the better behaved dog you will have latter.

Good Luck.
-- Sue