What to write in a journal: ideas for any kind of day

Short answer: write one thing that happened today, how it made you feel, and one thing you noticed or want to remember. That’s a full entry. When nothing comes, pick one idea from the list below, such as a good thing and why it went well, a conversation you keep replaying, or something you learned. One line counts.

Most people who ask what to write already have the notebook. What they don’t have is a starting point. Today feels too ordinary, or there’s too much going on to fit on a page.

Both problems get easier once you stop treating the journal as a record of everything. You only need one small piece of the day.

A three-line formula for any day

When you open the page and nothing comes, fill in these three lines:

1. What happened. One concrete thing. “Sat in traffic for 40 minutes” beats “long day.”
2. How it felt. A word or two: restless, relieved, flat, proud.
3. What I noticed. Anything at all. Why it bothered you, what you’d do differently, or just a detail you liked.

Here’s an example. It’s made up, not anyone’s real diary:

Sat in traffic for 40 minutes after work. Restless, then oddly calm once I gave up on making it to the gym. Noticed I always get tense in the first ten minutes of being late and then let it go.

That’s enough for one day. Kent State University’s Dean of Students office says it plainly in its journaling guide: start small, don’t feel you have to write more than one line, and know that writing down even one thought is worth something.

The middle line is worth keeping even on short days. In a 2007 brain-imaging study led by Matthew Lieberman, labeling the emotion in a negative image dampened the response of the amygdala and other limbic regions, and the authors suggest that putting feelings into words may reduce emotional reactivity. It was one lab study using pictures, not diaries, so take it as a hint. If you get stuck on the word, words to describe feelings has a list to pick from.

Things to write about in a journal

Pick one per entry. You don’t need to cover all of them, and you can come back to the same one every night if it works.

• Something that made you pause or smile, or that you don’t want to forget. This comes straight from Kent State’s list of ways to begin. “The cashier remembered my name” is a perfectly good entry.
• A conversation or a person. Kent State suggests reflecting on your interactions with others. Who did you talk to today, and how did you feel afterward?
• Something you learned, or want to learn. Another suggestion from the same guide. It can be a skill, a fact, or something you learned about yourself.
• Something you’re worried about, and why. Kent State’s advice is to write about the worry and explore why it has you worried. Name the worry first, then ask yourself why.
• Three things that went well. More on this below.
• Something you’re grateful for, in detail. Also below.
• A decision you’re weighing. Write out both options and how each one feels.
• What’s coming up. Tomorrow, this weekend, something you’re looking forward to or putting off.
• A list. Songs on repeat, things to do this week, small things that annoyed you. Lists are a good fallback on tired days.

What to write depending on the day

Writing about good things

Two well-known exercises give you a ready-made structure for the good days, and for the days when you have to look a bit harder.

Three good things

The Greater Good Science Center at UC Berkeley describes it like this: each day for at least a week, write down three things that went well and explain why they went well. They can be small (“I got out of bed today” is one of their examples) or big. For each one, the instructions suggest you:

• give it a short title
• write what happened, in as much detail as you like
• note how it felt at the time and how it feels now
• say what you think caused it

They also note that some people find writing before bed helps make it part of their routine. In the 2005 study the page cites, by Martin Seligman and colleagues, website visitors who followed these instructions reported more happiness immediately afterward and at one week, one month, three months and six months later. That’s one study. Still, the page puts the exercise at about 10 minutes a day, so it’s cheap to try.

A gratitude journal

Greater Good’s version: write down up to five things you feel grateful for, on paper or in your phone’s notes. Their tips make the entries more useful:

• Be specific. “My neighbor brought in my packages while I was away” says more than “nice neighbors.”
• Go deep, not wide. One thing in detail beats a long list.
• Focus on people. Their guide says people have more impact than things.
• Notice surprises. Unexpected good things tend to bring up stronger gratitude.

The page cites a 2003 study by Robert Emmons and Michael McCullough. People who kept a gratitude journal, weekly for 10 weeks or daily for two weeks, reported more gratitude, more positive moods and more optimism about the future than people who wrote about hassles or their daily life.

Writing about something that’s bothering you

Some nights the only thing on your mind is the thing you’d rather not think about. You can write about that too.

There’s a long line of research on this kind of writing, usually called expressive writing. A 2005 review by Karen Baikie and Kay Wilhelm notes two details that are useful for a journal:

• Write about what happened and how you felt. Writing only about the emotions wasn’t as helpful as writing about the event and the emotions together.
• Expect to feel a bit worse at first. Right after writing, people usually felt more upset, and the benefits the studies found showed up later.

If one subject keeps coming back, expressive writing walks through the full method. A journal can sit alongside the people in your life, though. If something keeps weighing on you, talk to someone you trust or a professional too.

Prompts for when nothing comes

Pick one. Answer in a line if that’s all you have.

• What took up most of my head today?
• What did I do today that I didn’t have to do?
• Who would I like to thank, and for what?
• What’s one thing I’d do differently if I had today again?
• What am I avoiding right now?
• What did I eat, hear or see today that I liked?
• What do I want tomorrow to feel like?
• If today were a weather report, what would it say?

What you don’t need to worry about

The University of Rochester Medical Center’s health library has some reassuring advice here. A journal doesn’t need any set structure. You can write or draw whatever feels right, let the words flow, and not worry about spelling or what other people might think. You also don’t have to show it to anyone.

So there’s no wrong topic. A grocery list with one angry note at the bottom is still a journal entry.

Reading it back

Kent State’s guide suggests reading over what you’ve written from time to time. Writing down how you felt at different moments can show how you’ve changed, and how you got through both the ups and the downs.

Once a month is plenty. Look for what keeps showing up: the same person, the same time of day, the same worry. If you want a format built for spotting those patterns, see how to keep a mood journal. If you’re still building the habit itself, how to start journaling covers finding the time.

Trying it in a tea house

Bium Tea House: Mood Diary is a mood diary app built around this kind of short entry. You pick one of five teacups for how the day felt, add a sticker for what it was about, such as work, family, friends or money, and write a line, or more if you like. The next time you come by, May has left a short note in your diary, written with AI.