Winter is closing in, and one of the simplest ways to fend off the chill won't cost you a fortune. Hot water bottles rarely get much credit, but they do double duty brilliantly: they keep you warm on a cold night and are brilliant for easing sore muscles or period pain.
There are other routes to a cosy home that don't involve cranking up the thermostat – electric blankets and heated throws among them – but a hot water bottle remains a low-tech, low-cost staple that earns its keep.
