3am and every minute on the minute, BEEP!…BEEP! piercing the cold, still, dark of night. Why do the batteries in smoke detectors always have to be changed in the middle of the deepest of sleep? Few things test a man’s sanctification, like dragging a step ladder around the house at 3am while somehow the wife never so much even rolls over. We now have cars that drive themselves, what if the smoke detector knew when the battery needed to be replaced and alerted you the week before during daylight hours? I would pay a little extra for said smoke detector, and I bet you would too.