Favourite way of keeping warm (indoor edition)

Well, I have lived in NZ.
Over there, central heating and building insulation have not been invented yet and you would have been lucky to have at least a wood fire place.
So in NZ, thermal underwear, wooly hats, hot water bottles and blankets while watching TV would have been the way to go.
Plus I had a cat, who also worked as a second hot water bottle.
Of all of these, I have to say the cat was my favorite, since it also came with a relaxing purring/fibrating function.
Now, back in Germany, insulation and central heating are back.
You just switch it on and all worries are gone (although, with rising energy prices at the moment, one might have to think about if one really wants to heat all rooms or maybe just the lving room).
I am however still in favour of my trusty old NZ hot water bottle. Hotties are still great for battling cold feet in bed.

I...turn up the heat 

Snuggly socks. It's amazing how your body feels warmer when your feet are no longer blocks of ice.
Otherwise it is layers, a mug of cocoa with a splash of whisky or brandy, and hugging a hot water bottle while listening to or reading something entertaining. (Preferably without that howling wind sound effect in it.)

Hot drinks or red wine.

Big floppy yellow goofball dog.

Decided to reopen this discussion as the weather is getting colder, in the northern hemisphere at least.

Central heating and dressing gown/bathrobe are my choices.