Ask people why they quit their last to-do app and they'll say it got messy, or they fell behind, or it was too much work. But trace it back and the problem started earlier and smaller, when things quietly stopped going in.
Once a list has holes in it, you stop trusting it, and it loses out to the one in your head. So whether things get written down ends up deciding everything else.
You get about ten seconds
Say you're in traffic and remember you need to call the plumber. That thought lives about as long as it takes the light to turn green. It's the same in a meeting or the middle of a conversation, where you get seconds, not minutes.
So whatever it takes to save the task has to fit inside those seconds. If you have to unlock your phone, find the app, tap new, type it in, and pick a date and a folder, you've turned a quick thought into paperwork. And the thought is gone before the paperwork is done.
Missed tasks pile up
Miss one and nothing bad happens, because you'll probably remember the plumber anyway. But misses pile up like skipped workouts. Every task that didn't make it in teaches you the list is missing things, so you check it less and trust it less. Little by little, you go back to remembering and worrying.
Nobody actually decides to quit their to-do list. They just stop putting things in, and three weeks later the list is a museum1.
Write it down without going anywhere
The thought always shows up somewhere, whether that's a Slack message, a drive, or a chat with an AI assistant. So saving it should happen right there, in plain words, without opening anything.
"Add a task: renew passport, due thursday." You can say that to Claude in the middle of another conversation, type it into Slack, or say it out loud in the car. That one sentence is the whole job, with no forms to fill out. The date comes from how you said it, and anything that only costs a sentence fits inside your ten seconds.
Your AI assistant is the best notepad you own
Something changed in the last few years, which is that a lot of us think out loud with ChatGPT or Claude now. That means you're often already mid-conversation when you remember something you need to do, so the assistant became the easiest place to save a task. There's nothing to open and nothing to learn, because you just say it.
This works through MCP, a standard that lets AI assistants connect to other apps2. So your assistant isn't taking a message to pass along for later, it can actually read your real list, add to it, and check things off, the same as your phone can. "What's due today?" and "mark the passport done" both just work.
It comes back when you need it
Writing things down is only half of it, though. The other half is knowing the task will come back at the right time, wherever you are. The reminder shows up in Slack because that's where you were working, the car reads out what's due on the drive, and the assistant answers when you ask.
And once you've seen it come back enough times, saving a task becomes automatic. You stop wondering whether something is worth writing down, because it only costs a sentence and nothing slips through. Really, that's the whole product.
Frequently asked questions
Can I add tasks by voice?
- Yes. Talk to Alexa, or to your car through CarPlay or Android Auto: "add a task: renew passport, due thursday." The task is saved, with the due date pulled from what you said. You can check things off by voice too.
Can I add tasks inside ChatGPT and Claude?
- Yes. Assistants connect through MCP, a standard that lets them work with other apps (42 Todo! is also in the ChatGPT and Claude app stores). Your assistant can add tasks, tell you what's due, and check things off your real list, not a copy. This works on the free plan.
Where do the tasks I save go?
- Onto your one 42 Todo! list, in whichever of your lists it belongs to. You can name it as you go ("#work"), let 42 Todo! figure it out, or let it land in your default spot. There's no sorting pile unless you want one. A saved task is already a real task with its date set.
What if I save something vague, like just "plumber"?
- A task only needs a title; everything else is optional. "Plumber" is a perfectly good task. You can add a date or details later from anywhere, or never. We made writing it down as easy as we possibly could.
Footnotes
- Stop opening your to-do list the slow, quiet quit that happens when a list stops being trusted. ↩
- The Model Context Protocol the open standard that lets AI assistants like ChatGPT and Claude connect to apps like 42 Todo!. ↩