As many people have been spending more time at home than ever before, it's inevitable some will have used up more household energy than normal. So, if in recent weeks you've swapped the desk in your office for a kitchen worktop, dining table or anywhere else in the home where you can set up a laptop, you may find your bills have increased when they next land on the doormat or in your inbox.
Smart Energy GB, which works to raise awareness about smart meters, has been asking a host of famous faces - including Rebecca Adlington, Helen Skelton, Chris Packham and Lisa Faulkner - to share their tips for saving energy.
Here's a selection of the energy-saving tips they've compiled, to help people at home keep their bills down.
1. Try making some cakes in the microwave, rather than the oven.
2. Make 'energy free' time a part of your day - leave the TV off and do a jigsaw or read a book.
3. Turn lights off in rooms that aren't being used.
4. If you have a smart meter, use it to keep track of your energy and identify where you might be able to cut down your consumption.
5. Put a jumper on instead of turning up the heating or even keep warm by dancing and exercising.
6. Let your hair dry naturally rather than blow-drying.
7. Set up your workspace near a window to make the most of natural light so you don't need a light on.
8. Clean the back of your fridge to make it more energy efficient.
9. Clean the backs of radiators to help heat flow freely.
10. Batch-cook your meals.
11. Use the right sized pan for the contents, to avoid heat loss or increased cooking time.
12. Write a note on your recipe so you don't forget to turn the extractor fan off.
13. Don't charge devices for longer than needed.
14. Let your washing dry naturally instead of using a tumble dryer.
15. Wash clothes at a cooler temperature.
16. Spend one minute less in the shower.
17. Only boil as much water as you need when making a hot drink.
18. Defrost your freezer.
19. Bleed your radiators to free them of any trapped air.
20. Do bigger clothes washes rather than lots of small ones.