I have a log burner which has been a bloody godsend, I've always foraged for wood since it was put in 5 years ago, it's become a habit I'm glad of.
Stopped using the oven unless absolutely necessary, now using my Ninja Foodie for just about everything or microwave meals.
Stopped boiling kettles, now heat water in the microwave for cups of tea etc.
WiFi, small fish tank (want to get rid of but it's my DP') TV, oven all get turned off overnight.
Phone is charged in the car instead of overnight,
Taken out every other light bulb in my ceiling lights (they are led anyway but everything counts)
Heating set to 16 for an hour each day and going off as soon as its warm enough
Stopped drying my hair with the hairdryer,
Tumble dry only if absolutely necessary, (I rarely have anyway due to historic frugality)
Shower every other day instead if everyday
Meal plan and shop once a month at a local discount, short date foods shop (absolute godsend) and freeze as much as possible. I literally empty the fridge, freezer and cupboards before I shop again
Use HelloFresh type Meal plans only if on heavy discounts. The last one cost me 15 quid for 5 days of meals @ 2 portions per meal and most were enough for 3 portions so worked out very cheap indeed.
Cancelled Virgin TV, my ancestry account, Prime.
Selling stuff on Vinted, Marketplace etc
It's going to be a tough few years :-(