So excited! First interview!

[Mondaygirl]

I am excited and nervous and completely baffled all at the same time. I posted an ad on Kijiji, not really expecting any reactions because I know from reading on here that it often takes a long time to get that first child in.
But tonight, after 3 days, I received a reaction! A mom with an 11 month old boy who wants to come by on the weekend to meet and chat. She asked a bunch of questions about practical stuff in her email, about payment, whether I preferred check or cash, and if I wanted to be paid weekly or bi-weekly.
I took the opportunity in my reply to tell her right away that I need payment in advance, and that after a two week trial period there will be two weeks notice required to quit, and a few more things. When really what I wanted to do was jump up and down like a maniac and reply:"Pick me! Pick me! Please please pick me!!"
I'm turning into a business woman!

Any interview tips, hints, strategies, warnings, and everything else very much appreciated! Please help me not mess this up, dear seasoned daycare providers!