Just sharing a tip - I'm still trialling it, so this might be a different story in a weeks time...
I have been an 'A' rating for the last three weeks.

I think the reason for this is that I have changed my gas central heating timer. I used to have the heating set to come on for one hour in the morning and three hours in the evening. Even though the temperature is set to 17 degrees, and I don't have the heating on for very long, it would still be on if I stayed out after work etc.
So, I have now switched the heating off, and turn it on manually every time I am feeling chilly. I have found that I don't actually need the heating on in the morning at all, and in the evening, I probably only switch the heating on for one hour. Its funny how, when I consciously think about it, I realise that I'm quite warm, and instead of taking off my jumper, I switch off the heating, realising that it is unnecessary.

This tip came from a colleague, and it is having a very dramatic effect on my gas usage - I've gone from a C rating to an A rating. Of course this is due to other factors, such as warmer temperatures etc, but I hope to use this method of controlling my heating year round from now on, so I'll report on how it goes.
I have also turned down the temperature of my hot water. What is the point of having boiling hot water going into the shower/washing up bowl, only for me to put cold water into the mix so that I can actually use it!?! So, I now have warm water, which I don't have to mix with cold - saving me on gas and water. This is probably the most sensible thing I've done in a long time.

I know that these tips won't work for everyone, I live in a house with two people, so it is easy for us to make decisions and be more conscious of our usage, but hopefully this might be of help to someone. Also interested to hear your thoughts and comments to my personal views.
