I'm moving in a couple of weeks and I'm making a cleaning to-do list now. I'm going to treat myself to some nice seasonal-smelling cleaning products. There may also be Christmas music 
I watch youtube videos of people cleaning to get my head in the right place.
Since the freezer will be empty, you can just leave it open and let it defrost itself while you get on with other things; just come back and empty whatever it's draining into every so often.
A pro to do the oven is a good idea, cleaning someone else's grimey buildup can be quite foul.
Put the washing machine and dishwasher on empty on their hottest cycles while you work.
Are there curtains? Chucking them in a service wash or getting them dry cleaned if they're fussy would freshen the place up nicely.
I'll probably start with bathrooms, then the kitchen, then the sitting room so you've somewhere clean to relax when you eventually collapse.
I have overly irritable skin on my hands, so for maximum comfort for a long day's cleaning, I like to put on a pair of thin cotton gloves under rubber gloves, to stop them getting sweaty and gross.
Go in with a definite plan for breaks at regular intervals. You need to pace yourself!
Enjoy it. It's your home : )