How often should you replace your detector batteries?
Grumpty's answer
Every 12 months
Why bother
A dead detector is just a wall ornament. This is an essentials-tier job. Skip it and you're inviting the expensive kind of problem, or the dangerous kind.
When to start thinking about it
A few days' warning does it. Grumpty grumbles 3 days out, then leaves you alone. Mark it done and Grumpty sets the next one, every 12 months, so you can go back to forgetting it exists.
Let Grumpty remember it for you
Add it once. Grumpty tracks the date, grumbles when it's due, and rolls it forward the moment you mark it done. No spreadsheets, no sticky notes, no forgetting.
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