Our house is slightly colder than we like right now, as we have turned the thermostats down.
The temperature is around 21 degrees centigrade, and neither of us can bear a lower temperature.
Here the accepted wisdom is that all rooms that are in use should be kept at the same temperature, so that the airflow between rooms is at a constant temperature.
We save by using the wood stove, and when it is on, the washing-up water is heated on it, and things like potatoes are brought to boil on the hob then transferred for the rest of their cooking time to the stove. I am seriously considering re-instating the hay box.
On electricity: only two electric lights on at any one time, and they are turned off on the days when the sun shines (today is overcast with a howling gale and rain, so the lights are on.) Dryer only used once a fortnight to dry bed clothes - everything else is either hung out in the dry days (still in the minority here) or hung to dry in the wash-house. No electric kitchen gadgets in use, apart from a kettle and the coffee grinder.
Brief showers three times weekly, with the water turned off while we soap or shampoo - this has been our practice for years to conserve water. Strip wash on intermediate days.
Washing up once daily, and used water used for cleaning kitchen bin, cat tray etc.
Mercifully, we don't run a car, so don't have to be concerned with rising petrol or diesel prices.
Restricting use of oven and one day a week dinner is a dish that only calls for one pot - stew or the like.
Trying to buy slightly cheaper or less food - but that is near impossible as food prices are rising.