The energy saving survey is concluded now - thanks to all of you who filled it in and especially to those of you who gave us your tips.
But first a reminder/plea from me - please do not just breathe a sigh of relief at the energy price cap and carry on as normal - the cap is supported by a subsidy and it still costs us money, albeit via taxes or reduced services. Fundamentally, the problem is an energy shortage and inevitably some people will have to use less; for fairness, this should not be the poorest and most vulnerable who have already cut their energy use to the bare minimum.
Now for your tips there are too many to list all of them but I have done my best.