Thank you for the ideas. I have in fact use the word "Off" from day one...it works a bit, but not completely. We started a puppy class through our city last night. The trainer uses Clicker Training. It invovles positive reinforcement rather than punishment for the bad behavior. It's a very simple concept, but it makes sense, and I am hopeful that it will work!
Positive reinforcement is always successful with children, so why not with puppies!!
If anyone is interested, this is the site that our trainer references...
http://clickertraining.com/15tips
I'll keep everyone posted as to our success!
Nicole