How to Remember Things You Forget: Lock Screen Notes

To remember things you would otherwise forget, get each thought out of your head the moment it arrives, then put it where you will see it at the moment you need to act. For most of us that place is the phone’s lock screen or a home screen widget, because we look at them dozens of times a day. Capture keeps the detail; placement makes sure you meet it again in time.

The rest of this article explains why that second step matters so much, and how to set it up so it keeps working after the first week.

Why do we forget things we meant to do?

Most forgetting in daily life is not about losing facts. You know your friend’s birthday. You know you need to buy batteries. What fails is the moment of recall: the intention has to come back to mind at the right time, without anyone asking you for it.

Psychologists call this prospective memory, which means remembering to do something in the future. It is different from recalling a fact when someone asks you a question. In a 1990 paper, Gilles Einstein and Mark McDaniel separated these tasks into two kinds. Event-based ones are tied to a cue: when you see your colleague, tell her about the bug in the export. Time-based ones are tied to the clock: call the dentist at 3 pm. A time-based task gives you nothing in the world to trigger it, so you have to remember to check.

That is why “I’ll remember” works when you are calm at your desk and fails on a busy day. Your attention is full, nothing reminds you, and the intention quietly expires. The fix is to stop relying on recall and build the cue yourself.

How to capture a thought before it disappears

A thought you mean to act on later is fragile for the first minute. If you have to open three apps, choose a folder and type a title, it is often gone before you finish. A few rules make capture fast enough to happen every time.

Keep one place for it. If capture sometimes goes to email, sometimes to a paper pad and sometimes to a chat with yourself, you will not know where to look later.

Write the action, not the topic. “Dentist” tells you nothing at 6 pm. “Call dentist to move Thursday appointment” tells you what to do.

Include the detail you will need in the moment. The gate code, the phone number, the name of the file. A reminder without its detail sends you looking for it, and that search is where things get dropped.

Do not sort yet. Sorting is a decision, and decisions slow capture down. Most notes never need sorting at all. If you want to keep the rest tidy, we wrote about organizing notes without a heavy system.

The same rules apply to thoughts that interrupt focused work. A written “parking lot” for them is one of the ideas in our piece on pomodoro for a wandering mind.

Where should a reminder live so you actually see it?

Capture solves half the problem. The other half is meeting the note again when it matters. The question to ask of every important note is: where will I be looking when I need this?

Peter Gollwitzer’s research on implementation intentions, summarized in a 1999 paper, found that people who decide in advance when and where they will act (“when I get in the car, I will call the garage”) follow through more often than people who only set the goal. A good reminder works the same way. It ties the note to a moment you already pass through.

For phone users, the most reliable moment is picking the phone up. You check the time or glance at a message, and the lock screen is there before anything else. A note that waits on the lock screen gets read without any effort. A widget on the home screen is the next best place, since you pass it every time you open an app.

Match the cue to the kind of task. A code, a short list or a detail you need today belongs pinned where you glance. Something that has to happen at a set time needs a timed reminder, and that reminder should carry the note with it, so when it rings you are not left asking what “the thing at 3” was. An ongoing priority for the week suits a home screen widget. Everything else can wait in your capture inbox until the daily review.

How do you keep lock screen notes useful?

Visible notes have one weakness: if there are too many, you stop seeing them. A lock screen with fifteen notes on it becomes wallpaper within a week, the same way a fridge covered in magnets stops telling you anything.

Keep the visible set small, around three to five. Pin only what you will act on soon or need to read often. Phrase each note so a two-second glance is enough: “Bring charger to office”, not “charger”.

When a note has done its job, take it down straight away. That small act keeps your trust in the list, because anything still pinned is still live.

This is the exact problem we built Locck around. You pin a note and it stays on your lock screen and in your widgets. On Android it stays until you unpin it, with a button to snooze it for 30 minutes when the moment is wrong. A note can also carry its own reminder with a date, a time and one of five sounds, so when it fires the details are already on the screen.

What to do when you still forget

Even a good setup fails sometimes. The causes are usually the same few.

You stopped noticing the notes. Remove half of them. Reword the ones that stay so they look new again.

The reminder fired at the wrong moment. You were driving, or in a meeting, and dismissed it. Snooze instead of dismissing, or move the reminder to a moment when you can act, such as the end of the workday rather than the middle of it.

The note did not say enough. Next time, write it for the person you will be when you read it: tired, busy and without context.

You captured it in the wrong place. Go back to one place. Two inboxes mean twice the checking, and one of them always gets skipped.

A two-minute review habit

A short daily review keeps the system honest. Do it at the same moment each day, such as after dinner or before you close the laptop.

1. Open your capture inbox and read every new note.
2. Delete what is done or no longer matters.
3. Pin the few things you need to see tomorrow.
4. Add a time to anything that has to happen at a specific moment.
5. Take down any pinned note you have already acted on.

Once a week, take a slightly longer look at everything still open. A note that has been sitting for a month usually needs a decision: do it, schedule it or let it go.

How we handle this in Locck

Locck came from a pattern we kept seeing on our own phones: important notes buried in long lists, and reminders that had lost the reason they were set. So Locck keeps the note and its reminder together and in sight.

A pinned note stays on your lock screen. On iPhone it appears as a notification and in Locck’s lock screen widgets, and there are home screen widgets in three sizes. On Android there is a resizable list widget. Widgets refresh as soon as you pin, unpin or edit a note. You can pin three notes for free. Notes live in an encrypted database on your phone, there is no account to create, and everything works offline.

Whatever you use, set it up so that tomorrow’s important thing is in front of you before you go looking for it.