Since we have heard a lot about possible black outs to save electricity.
Not sure if this will happen.
But I made a wee list to be helpful of things you might find useful:
Extra duvet to keep warm.
Food flask, so you can make some warm food or soup before the actual black out to store for later in the day when electric is out.
Some lanterns that are batter powered.
some nice fairy lights battery powered, you can always put one up at the window to help those that are outside in the dark.
Batteries.
Some snacks and some food you can prepare cold.
Keep phones charged and if you can afford to maybe get a DVD player that you can charge so you do not feel so lonely.
Hope that helps.