I have been following this thread with interest. I do the time warnings with DD 3 y.o., but still get melt down that lasts forever when I eventually just have to say we have to leave and strap her in the car. If I said I would wait in the car, she would say 'seeya' and I would sit in the car for hours.

I wonder if some kids need stronger boundaries than others, just how to achieve this is the question.