birthday and the aftermath

So Amelia turned 3 about two weeks ago - now there's a whole bunch of things she's promised me that she will do after she attains this ripe, adult age - chiefly give up the milk bottle, sleep byherself - without me rocking her in my lap and going through the entire class rolecall and speculating who's asleep and whose mothers are asleep. And learning swimming.
So the negotiations started last week - this is the conversation
NC (While holding milk bottle in hand at 10pm): Amelia how old are you now?
AC: three years old mama
NC: So what are you supposed to do?
AC: stop drinking from dudu bottle, only in glass! sleep by myself! start swimming!!
NC: So can i give this milk in the glass
(all the while resigned to the fact that i am so not winning this round when the threat of no dudu bottle cannot be made, since said dud bottle is already in hand and very visible to the 3yr old)
AC: but i think i'm not 3 yet mama, i am only 2 and a half. i will become three
NC: so which birthday did we celebrate 2 days ago?
AC (after a brief thought): but mama, there were only two cakes!!!
There - she wins. Now i know why i never got good prices. i suck at negotiations!