PSA: New batteries
I won't remind you to change your clocks tomorrow, but according to the "Change Your Clock, Change Your Battery" campaign started by the International Association of Fire Chiefs and Energizer, it is the recommended time to change the batteries in your smoke detectors. If your smoke detector is more than 10 years old, it may be time to replace the whole thing. And if you're not sure how to change those batteries, get a step stool and find out how.
(sources: Change batteries for smoke detectors; Smoke Alarms - What You Need to Know; How to Change the Batteries in Your Smoke Detector)
