This one is particularly appropriate at the moment. Here in the UK there is panic about energy bills rising by up to 50% and it's also extremely cold, meaning that if we don't want to turn the heating up full blast all the time, we have to come up with ways to keep warm.
And by that I mean realistic ways to keep warm. Two energy companies have already been attacked in the press after they sent their customers socks in the post and suggested they eat porridge and leave the oven door open. A little tone deaf, I think.
One of the suggestions they made, however, was something I've incorporated by accident. I have a fluffy blanket on my couch which I wrap myself up in of an evening - nicely warming to start with - but I discovered that when I have this blanket across my knees, the cats can't resist it. They're not lap cats most of the time, but they will sit on it and pretend I'm not underneath it.
And cats are warm.
Couple that with an oversize fleece I've picked up for emergencies, and that should keep me going through the winter.
So what inventive ways do you have to keep warm?