Camille, I hope you guys don't lose electricity!
I would keep your bedroom door shut so as to keep as much warm air in as you can. I would think it would also be a help to wrap Ollie's cage with a blanket.
I don't know if it's safe to use some of those Hot packs for hands and feet or not. Maybe someone else would know. I was thinking if they were safe you could wrap a few of those in a towel and put them on top of the cage to give off some warmth.
You two can always wrap up in a blanket together.
Make sure you have batteries, water and food on hand.
That's all I can think of for right now.
