bwahahahaha!
I have three children, and the youngest is going on 20 months.
They have all been totally different.
The oldest was sooooo easy.... never really had to spank her or anything. She's become a bit uppity now that she is 13, but she still really isn't much of a problem.
The middle child tested us from the beginning and continues to test us daily. It's been a lot of trial and error with her... and yes, she has been spanked from time to time since she was about 2. She did this charming thing with
fecal smearing for a while and it was very hard to just say "no no, just go stand in time out!". However, she IS a special case and quite frankly all my disciplining/teaching of her has been totally 'learn as I go'.
The baby is another easy one... I have been telling him "No no" and he tells me "no no!" right back! What I do when he is really being a culito head is stick him in his crib for a few minutes. I haven't spanked him yet and hope to avoid spanking him in general... I never wanted to spank my middle child but like I said, all kids are different and sometimes for her a swat on the fanny is the only thing that gets her attention. She's a pistol!
Anyway, I recommend the "removing the offender from society" technique at first. Explain what you are doing in words she understands and then stick her in her crib for 5 minutes. It's like a first 'time-out"... when she is old enough to understand time out (which will be soon), you can stick her in the corner.
Just my .02.... remember, every child is different and will respond differently to various techniques!
I prefer non-violence but an occasional swat on the behind is sometimes effective.
edit: Actually, she might be ready for time out in the corner now.... try it. I like "Your Baby and Child" by Penelope Leach, you might want to check it out next time you are in a bookstore.