We have done tire pressure and oil level checking. How about smoke detectors.
One of mine started chirping, after I replaced all the them 6 months ago (old ones were 10 years old). It took me 20 minutes to find the right one; the battery good until 2018 was dead. Oh well.
That got me looking at the instructions to see if there is any way to find the bad one except by ear; there isn't. But I saw instructions for testing them every week and vacuuming them every month.
Got me wondering. So who does maintenance on their smoke detectors.