Most reminder advice assumes a useful baseline rhythm: weekly bills, monthly check-ins, annual deadlines. That rhythm breaks down completely when the task only fires once every ten years. The interval is long enough that you'll move houses, change jobs, switch phones, and possibly forget the original task entirely between occurrences. The deadline arrives with no warning because nothing in your life was holding onto the date.
The list of these decade-frequency tasks is shorter than the list of annual ones, but they tend to be the ones with the most painful consequences when missed. A missed monthly bill is a fee. A missed ten-year task is a canceled trip, a fire safety violation, a walk-in clinic visit on a Sunday because the tetanus situation got urgent.
The decade-frequency list most adults need to track
These aren't every task on a ten-year cycle, but they cover the ones most people actually encounter. The cadences are approximate and worth double-checking against current guidance, but the order of magnitude is right.
- US passport renewal. Adult passports are valid for ten years per the US Department of State. Child passports are five years. Many countries require six months of validity remaining to enter, so practical renewal lead time is closer to nine years and six months.
- Smoke alarm replacement. The Texas Department of Insurance, following manufacturer guidance, recommends replacement at least every ten years because the alarm sensors wear out. Carbon monoxide detectors are usually on a five- to seven-year cycle; check the back of the unit for the manufacture date.
- Tetanus booster (Td or Tdap). The CDC recommends a booster every ten years for adults. Easy to lose track of given how rarely it comes up otherwise.
- Will and estate document review. Estate planners typically recommend a full review every five to ten years, or sooner after a major life event (marriage, divorce, new child, large change in assets).
- Driver's license photo. Many US states issue licenses on an eight- to ten-year cycle, with mid-cycle renewals sometimes done by mail. Check your state's DMV rules; the cadence varies.
- Long-term financial plan refresh. Retirement projections, beneficiary reviews, target-date allocations, and similar items often go untouched for a decade if nothing forces the issue.
- Professional headshot. Not safety-critical, but a ten-year-old photo on every professional profile starts to feel inaccurate to the point of being misleading.
The combined list is small enough to manage. The challenge is that none of these tasks have a recurring system around them by default. Each one needs to be set up individually, once, and trusted to come back when its decade is up.
Why these tasks slip through
Decade-frequency tasks fail at memory the same way annual ones do, only worse. The brain's prospective memory system handles short-term intentions reasonably well, struggles with annual ones, and is essentially useless for things that happen once every ten years. There's no contextual rehearsal at any point during the gap, no seasonal cue, no friend mentioning it, no recurring slot in your calendar that approximates the cadence.
There's also an attention problem. Most of these tasks don't generate any signal at all until they actually fail. A passport doesn't get louder as it expires; it just stops being valid one day. A smoke detector that's reached end of life will eventually start chirping, but that chirp is identical to the low-battery one and gets handled the same way (a battery swap that buys six more months of false confidence). The tasks are built to be silent until they break.
The third problem is that the time you'd most logically set the reminder (the day you completed the task) is also the moment you most want to stop thinking about it. You just got the passport. You just installed the smoke alarm. Your future self in 2036 is not top of mind. The setup window closes within minutes, and the task disappears for years.
Key takeaway: these tasks fail because nothing holds onto the date for you. The reminder has to be set the moment you finish, by you, deliberately.
A simple system for decade-frequency reminders
The system below is built around a single habit: every time you complete a decade-frequency task, you set the next reminder before you leave the desk, close the app, or hand back the form. The reminder goes nine months ahead of the actual deadline so there's time to act, not just time to feel rushed.
The single most effective move is to set the next decade reminder while the current task is still in front of you. New passport in hand? Open your reminder tool now and set one for nine years and three months out. New smoke alarm installed? Set the reminder before you put the ladder away. The information is fresh, the motivation is high, and the dates are accurate.
If you try to do this later (after dinner, next weekend, next month), you almost never will. The window of natural attention closes fast on tasks that feel done.
A reminder that fires the exact day a passport expires is useless. By that point you've already missed any reasonable processing window. Pad every decade-frequency reminder with real lead time: three to six months for passports (longer if you travel internationally or your state has slow processing), thirty days for smoke alarms, sixty days for a tetanus booster, ninety days for an estate document review.
The right question to ask when setting the date is: "If I get this email and do nothing for three weeks, will I still be on time?" If the answer is no, move the reminder earlier.
In ten years, you will not remember the context. Put it in the reminder. Good titles include the installation or issue date, what needs to be done, and where the relevant record lives: "Passport renewal due (issued Apr 2026); use DS-82 if eligible; renewal site travel.state.gov" beats "Renew passport." The future version of you reading the email in 2036 will be grateful.
Treat the reminder as a tiny handoff note to a different person, because functionally that's what it is. Decade is long enough that you'll have forgotten everything except what's written down.
A reminder set on a work phone you'll change next year is almost guaranteed to die before it fires. The same is true for an app you might stop using, a calendar tied to an employer account, or a sticky note in your filing cabinet. Use something that lives somewhere durable: an email-based reminder tied to a personal email address you've had for years and plan to keep.
The reminder system that's still going to be checking on you in 2036 is the one that doesn't depend on a specific app, phone, or employer. Email is unglamorous, but it is remarkably long-lived.
Where BoldRemind fits
Most reminder apps don't really expect you to set something a decade out. Calendars will accept the date, but the alert is easy to dismiss when it finally arrives, and you might not even have the same calendar by then. BoldRemind is built for exactly this kind of long-horizon, low-frequency reminder. You enter the date and your email, and an email arrives on the date you specified, with a follow-up sequence to make sure you actually handle it.
Because everything is tied to email, the reminder works even if you change phones, change jobs, change houses, or stop using whatever calendar app you currently rely on. The inbox is the one place where a decade-old reminder can plausibly still arrive without fuss. There's no account to lose, no app to update, no subscription to maintain.
For the small handful of tasks that only need attention every ten years, this is the difference between catching them on time and discovering them by accident at the airport counter, the fire inspection, or the urgent care waiting room. Pair this with recurring reminders for the things that need more frequent attention, and most of the predictable "I forgot" moments in adult life have a system catching them.
The takeaway: ten years is too long for memory. Set the reminder the day you finish the task, pad the date generously, and put the system somewhere that will still exist in 2036.