How to teach a toddler not to become stubborn?

I was laughing to myself when I read this question :-) This is every parents' dilemma :-) What we do at home is that we are consistent. If hubby says no to the kid, even if I disagree, I have to say no. I don't want him to be running to him pleading for a yes because his father says no. If I say yes, he will loose his respect for his father. And also, for us, no means no. No negotiation and we are stingy with our nos to as we don't want to take it back later on. Early on, you have to show them that you are the boss. Just because he fusses and whines in public does not mean that he will get what he wants. My lo is still stubborn from time to time but I guess that is just part of growing up.