What do you do to keep warm on these cold winter days/nights?

Put on my flannel pajamas, my slipper socks, and cuddle up to my fluffy dog.

I would answer this Q but this is a PG-13 site :O in all seriousness though a bottle of  red wine a big blue blanket and some awesome company work :)

A wood stove, hot chocolate, my puppy and soft cushy socks. Practical hint : Make sure all closet doors are closed, no use in heating unused areas.

I'm not complaining. It reached 41*C the other day (that's about 106*F) so I appreciate the occasional cool night when it comes.

Since I don't have a lady here to keep me warm, I wear sweatpants and sweatshirts and snuggle with my Hound dog ! He keeps me warm ! Lol

I turn the heat up and drink hot coffee.

I've had to set fire to my bedside cabinet again tonight. It's ruining the other decor. It's warm though (although I think the asbestos blankets I now have to use may not be THAT good for my health.)

Hey, it could be worse....

When I lived up north, one of the best purchases I made was a heated mattress pad. Turn in on about 15 minutes before going to bed, and you never get into a cold bed. Put a down comforter on top and it was nice and toasty.  Also a fire place and lots of tea.

At night I use a hot water bag. I put it in bed and when I go to sleep the bed is incredibly hot and cozy! :)

I set the thermostat at a comfortable temperature so I don't have to use any covers. I like sleeping without anything binding me.

I'm really skinny so I tend to get cold more easily than anyone else in my family. I make sure to wear thermal socks and if necessary, a beanie or gloves when I go out. Inside, I just make sure the heat is turned up :)