Just for Middleclassproblem!! 
What do you leave out for Santa?
In our house growing up, it was a biscuit, glass of Guinness and a carrot (for Rudolph). Same in DH's house.
In our house now, DD leaves out a plate with a couple of cookies, a glass of milk (Santa can't drink and drive!) and a carrot for Rudolph.
She makes the cookies herself in the afternoon - which can be a great way to keep her busy. Just in case the day is more manic than I'd like, I also make sure that every year I bake a batch earlier in December (it's a "slice off rounds from a log of dough" type recipe) and freeze half of that log - so I can just "slice and bake" either defrosted or even straight from frozen if that is needed.
I do have a glass of amaretto for myself later in the evening once the bedtime rush is over - my seasonal treat with an amaretti biscuit!