Have you ever noticed that your smoke detector's battery always runs out at 3:00 in the morning? I have a pretty good size house with 9 smoke detectors. Why is it that when the battery always runs out it's like 3:00 in the morning. Step 1: Loud beep wakes you up from deep sleep. Step 2: Put pillow over head and hope that it will somehow stop beeping on its own. Step 3: Dog now is barking after each beep. Step 4: Get out of bed and try to figure out which smoke detector is guilty of the disturbance. Step 5: Go to cold garage, (in underware) and pull ladder out. Remove and destroy all spiders living on ladder. Step 6: Find a good 9 volt battery. If I can't find one in the battery drawer, then rob one from my guitar tuner. Step 7: Drag ladder in from garage and install battery. Step 8: Leave ladder in house cause I cause I don't want to deal with putting it back in the garage til morning. Step 9: Go back to bed and lay there thinking that some one needs to invent a smoke detector with a light sensor that will only allow it to give low battery alerts during daylight hours. I know these things save lifes but there has to be a better mouse trap. Just venting a little here.