Cooking today I did my usual - turn off the vegetable pans 2 or 3 mins before they were cooked and let them finish off in the residual heat.
Worked out that was 2 pans for 3 mins without gas so 6 minutes total gas saved.
Do this 3 days a week is equal to 18 minutes a week which is 936 minutes gas (over 15 hours) saved over the year.
Quite a saving overall I’d say.
Ha, that’s what I do too!