With gas prices soaring and snow falling across much of the UK, what energy-saving ways of keeping warm can you suggest?
As engineers, we should be capable of working out how best to insulate our houses to cut down on energy loss. A cheaper alternative might be to buy some extra pullovers and turn the heating down a bit.
Mike Paul, senior engineer, 52, Stuttgart, Germany As an alternative to long johns and wearing all that surplus site attire you've collected over the years, what about an exercise bike wired up to a battery charger- That would keep you warm, store energy for later, and keep you fit at the same time.
Roland Arthur, retired, Bolton Put on a jumper, go outside and do something active. It doesn't feel half as cold when you come back in again.
Alasdair Massie, 42, senior engineer, Cambridge I've heard that sucking strong mints gives off a generous amount of heat and has the secondary advantage of saving on air fresheners.
George Miezitis, 55, operations team leader, Fife.
Go to bed with your partner and don't come out until the spring.
Andy Eggleston, 31, senior engineer Yorkshire A vigorous exercise session followed by a good shot of brandy works every time.
Caroline Madden, 25, regeneration manager, Milton Keynes Travel abroad to a sunny country. It will probably cost you less than staying here and fighting the cold.
Chrysostomos Loizou, 29, civil engineer, London One way to keep warm is to go out and saw up some logs. You don't have to have a fire - just the exercise does wonders. So perhaps one message is fewer 'labour-saving' devices?
Jon Balley, 55, water engineer, Buckinghamshire To save energy, be carbon neutral and minimise energy bills - the solution is to burn wood from trees in your garden on a wood burning stove.
Paul Jameson, 51, head of highways, Worcester I seem to remember being taught that huddling together conserved body warmth. In the right sort of company, this method could not only reduce heating bills but alleviate the need for a TV.
Robert Pike, 43, project manager, Exeter It is more energy efficient to have your heating on at a lower temperature, but for longer, and insulation is the key - you cannot have too much of it.
Charis Fowler, 33, principal engineer, Derby No more recycling of paper and cardboard; we burn it all in our recommissioned fireplace, together with plastic food packaging. Pruning of the garden hedge yielded more combustible material, followed by broken up pallets.
John Sreeves, 47, senior bridge engineer, Swindon Keep upper doors closed when the central heating is on and wear more clothes at home. This should have the combined effect of keeping in as much heat as possible and not having to have the thermostat set above 20°C.
Lee Durnford, 35, PFI advisor, Croydon