Changing your clocks twice a year is also a good time to change the batteries in your smoke detectors.   From MSNBC:

Firefighters say 3,800 people lose their lives every year in house fires related to smoke detectors not working.

They are reminding you that by changing a few simple batteries, you’re greatly improving your chances of getting out of your home safely if a fire does break out.

I changed my battery.   Did you?