C.P.
Wow - this was like reading about my own life. My daughter is 5 1/2 and is the exact same way - so loving and caring with everyone but me. At home, she is stubborn and willfull and argumentative. I always allow 3 repetitions of a request and if she doesn't comply after that, she gets punished. This hasn't really worked, however. It's just led to her being punished a lot. When we get in a really bad slump, I'll try to take some time for just me and her to go do something fun and try to get back on the same page - like hike around Walden Pond or go to the mall to buy her some new earings or a little trinket - do something to remind her that I love her and love being with her. I think the only-child syndrome is very similar to the first-born in that they have a mothering instinct. I love to watch my daughter be the only one on the playground making sure a hurt child is okay - so I take advantage of that, too. I make sure she understands that her attitude hurts me, and that in turn makes her want to kinda take care of me instead of fight me. This has worked the best, but I feel it's a bit manipulative, so I only resort to it when the situation is really bad. I also just remind myself that a happy mom gets through to her better than a demanding one. So even if I don't feel it, I fake it, and then the request seems more reasonable to her. I also realized it takes 2 to fight, so once I've explained how things really are to her, I've done my job and refuse to argue it with her any further. Good luck - I look forward to seeing what others write.