# Did I lock the back door?

> The back door is easy to forget because you usually lock it at a different time than you leave, often hours earlier, so there's no clear memory linking it to your departure. Check it with someone at home or a camera if you can, and add it as a named step in your leaving or bedtime routine.

Most people leave through the front. The back door, the patio slider, the side gate into the kitchen: those get opened for the dog, the recycling or a bit of air, and then they're supposed to get locked again at some point. That "at some point" is where the trouble starts.

If you're sitting at work wondering whether the back door is still unlocked from when you let the dog out at 7am, you're far from alone. It's a timing problem more than a memory problem, and it's fixable.

## Why you can't remember

The front door has a natural trigger: you lock it because you're walking out of it. The back door has no such moment. You might unlock it to take the trash out, come back in, and flip the latch while thinking about breakfast. That lock happens in the middle of something else, so your brain barely registers it.

Time makes it worse. By the time you leave the house, the back door lock is hours old and buried under everything you've done since. Your memory of it has to compete with yesterday's identical lock, and the day before that. When you try to recall it, you get a blurry blend with no date attached.

Sliding doors add their own twist. Many have a small latch that looks almost the same open or closed, and some need a bar or pin as well. If you glance at it without checking the latch position, you can come away with a confident feeling that isn't based on much. And going back to recheck it again and again tends to lower your confidence, since every new look adds one more similar memory to sort through.

## How to check right now

- **Call someone at home.** If anyone is in the house, ask them to try the handle or check the slider latch. It takes them a few seconds.
- **Check a camera if you have one.** A backyard or indoor camera may show the door. Some contact sensors from home security systems will also report whether a door is open or closed.
- **Think about when you last used it.** Did you go out the back today? If you didn't open it since last night, and it was locked then, it's still locked. Working out whether it was opened at all narrows the question a lot.
- **Ask a neighbor with access.** If a neighbor can reach your yard safely and you trust them, a quick look is easier than a drive home. Only ask if the yard is accessible without climbing a fence.

## How to stop rechecking

- **Lock it the moment you come back in.** Make it a rule: the back door gets locked as soon as you step back inside, before you put anything down. Tying it to re-entry gives it a trigger it never had.
- **Add it to your leaving routine by name.** Before you head out the front, walk to the back door and touch the lock. Say "back door locked" as you do. It adds twenty seconds and removes the doubt.
- **Add a secondary bar to sliders.** A security bar or dowel in the track is easy to see from across the room. If the bar's in, the door's secure, and you can tell at a glance instead of squinting at a tiny latch.
- **Keep a record you can check.** A One Loop with a quick tap or photo as part of your exit routine gives you a timestamp to look at later. You open the app at work and see when the back door was last confirmed.

## Set it up in One Loop

Loop name: Back door. Confirm with: Simple tap. Reminder: No reminder. One tap as you lock it is enough. The point is to give a lock that usually happens mid-task its own clear, timestamped moment.

## Questions people ask

### Why do I always forget to lock the back door?

Because there's no natural trigger for it. You lock the front door as you leave, but the back door gets locked in the middle of other tasks, so the action is easy to skip and hard to remember.

### How do I know if my sliding door is locked?

Check the latch position up close rather than from a distance, and pull on the handle. Adding a bar in the track gives you a visible sign you can confirm at a glance.

### Should I lock the back door when I'm home?

Many security guides recommend it, especially at night or when you're in another part of the house. A locked back door is one less thing to wonder about later.

### Can I get an alert if my back door is left unlocked?

Some home security systems and smart locks offer door sensors and alerts. One Loop doesn't connect to locks or sensors; it records that you confirmed the lock yourself.

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Source: https://getoneloop.app/did-i/lock-the-back-door
One Loop for iPhone: https://apps.apple.com/us/app/one-loop-proof-you-did-it/id6802970270