Due to energy crisis, I've only just started turning upstairs rads off in the mornings and on in the evenings - only heating rooms I'm in.
This embarrassing waste of money has made me think what else (not just energy costs) am I unthinkingly wasting money on.
Generally speaking, we take coffee / tea / water and don't buy it out and shop at Aldi. Both WFH most of the time and don't buy lunches.
Is there anything you've changed and suddenly thought why didn't I do this sooner!?