I have thought the same as you, Christie. Sometimes parents do not spank, which is fine, but then do not discipline at all! I have also wondered if that is why children are so badly behaved in this day and age.
I believe in using various methods of disciple. I am always researching new ones or learning new ones from mom groups. It is important to know what type of kid you have, and using different discipline for different behaviors. I really like reward systems and offering kids a reward like family time for good behavior!