B.R.
My son is just starting that and he will be 3 in march. He never really had terrible twos, im starting to think maybe its starting later now. As funny as this may sound i watch super nanny to get good advice on displine and it all seems to work. When my son starts whinning he gets a warning and then if he doesnt stop he goes in timeout which i know you said doesnt work. My only guess is maybe if you ignored her or where maybe a lil more stern when talking to her when she acts that way it might help. I learned from super nanny to get on there eye level when you speak to them and that seems to work really well. My son is a little on the sensitive side so maybe thats why it works better for us.