The smoke detector in my hallway needs new batteries, so it's chirping loudly, and I can't change the batteries myself
because I can't get the cover off. So I'll have to call the landlord tomorrow, which means...
ALL-DAY CLEAN-A-THON!
What kind of smoke detector is it? For mine, a Lifesaver, I have to push up and rotate the whole smoke detector clockwise about an inch until it's unhooked from the prongs on the frame that is screwed to the ceiling.
Then once it's removed, I can open the battery door on the back and replace the nine volt battery.