If you can't remember the last time you checked the batteries in your smoke alarm, then today is the day! It only takes a few seconds and could save the lives of you and your family.
While you're at it, it's also a good idea to:
1. Check batteries in other appliances such as clocks, toys, remote controls, torches, etc.
2. Stock up on more batteries in the sizes you use the most.
3. Set a reminder with an alert in your phone to check your smoke alarm next time.