Tim and I are temporary parents- we've inherited a 10 year old little girl for 5 days.
I'm already learning tons of things- don't get me wrong, we've hung out with Deanna before, we've babysat her- but never for an extended period of time and certainly not overnight.
Lesson #1: Small kids don't eat very much at all. As in, don't make extra food for them, they can just eat what you would normally have as leftovers. In your over-eagerness to make sure they don't die of starvation, you will make enough extra food to feed a professional linebacker.