I have turned the heating down, and it comes on a bit later and goes off earlier.
I try to minimise washing; yes DC clothes require a lot of washing, but as adults, I will wear a jumper 2 or 3 times before it is washed, etc
I use the dishwasher less often; I try to use the oven and hob more efficiently (ie not the oven on for 1 thing, etc). I try to hang washing outside if it is dry (and even in winter, if it is windy).
We have cancelled netflix; eat out fewer times, try not to waste food, by working out a menu, etc;
Walk to shops more (to save on petrol)