I like that show "At the end of my Leash." He's got great tips in there, and you can really see (after a few episodes) that the dog's problems are really symptoms of the family's issues. They're kind of like kids in that they pick up tiny emotional nuances in the family dynamics and the stress gets to them.
I believe in the
NILF theory : Nothing in Life is Free. Make the dog work for everything it gets, even if it's just a sit-stay before dinner. It builds respect and attention and patience. But you have to be consistent! If you ask the dog to do something, then GIVE UP, the dog will learn that obedience is an option, not a mandatory thing.