I only washed my clothes on a 30° cycle for four weeks and this is how much I saved on my energy bills and my laundry is just as clean

Open grey washing machine in utility room with basket of laundry and bottle of detergent on the floor in front .

As someone who writes about saving energy for a living, I love setting myself little challenges to see if I can use less energy around my own home.

I've already tackled two of my most used and energy-hungry appliances — I went without my tumble dryer for a month, and then followed suit by switching from using my dishwasher to handwashing for the same amount of time.