DH just took our monthly meter read to submit it to our fuel company for our bill. He is very chuffed ( and secretly so am I - but cant tell Mr Smug pants! ) because it is almost half what it was last month!
Now, there are factors to be considered - last month we had a lot of snow and so the heating was on a bit more and it was school holidays so we were home to take advantage of it.
BUT - he said he has reduced the thermostat from 18 to 16! I am a very cold person - but genuinely hadnt noticed the difference!
So it may be worth a try if you are trying to cut the cost of your energy bill - (probably you have already done it!) but just wanted to share.