Side hustle breakdowns

6 low maintenance side hustles, with the real numbers

Most "passive income" lists are guesses. These are six side incomes where the person running them posted the numbers: what it earns, what it costs and how many hours it takes.

None of them is fully passive. Each one needed a burst of work up front, and most still need a few minutes a week. Three come from anonymous accounts, and they're labeled.

Checked Sep 25, 2026. Every number links to the founder's own post.

6

side incomes with real numbers

$185/mo

from a trash-day text, 20 min a month

2 weekends

to list a storage unit's gear for rent

4 of 6

earn under $700 a month

At a glance: what each one makes a month

Log scale. Converted from daily, weekly or yearly figures where needed.
  1. 1Renting out a driveway$3,960 in 3 months
  2. 2duckmath.org, a games site from high school~$10k a year
  3. 3Renting out a storage unit's contents$580 to $640/mo
  4. 4Trash-day text reminder$185/mo net
  5. 5Selling recordings of old appliance sounds$35 to $110/mo
  6. ·dryoutside.com, built in one eveningTips only, no figure
01Service▲ 3.4k on r/passive_incomeAnonymous, unverified

Trash-day text reminder

A text message the night before trash day, sold to HOAs and small apartment buildings instead of to residents.

$185/mo netas reported

  • $185Net per month
  • 7Paying communities
  • $20 to $35/moPrice per community
  • 20 min/moUpkeep
Where the idea came from
The neighborhood's trash day moved from Friday to Thursday and people kept missing it.This started because my neighborhood changed trash collection from Friday to Thursday and people kept missing it.
First customers
Their own HOA paid first. A friend who manages small apartment buildings then wanted one per property.I mentioned it to a friend who manages a few small apartment buildings and he wanted one for each property.
Costs and time
About $14 a month for the texting service and 20 minutes a month of checking schedules.It costs me around $14 total for the texting service
What made it work
The HOA or property manager pays, not each resident. One sale covers a whole building, and the buyer already fields the "is it trash day?" questions.

Copy this

Find a question a group asks every week, like pickup days, closures or schedule changes, and sell the answer to whoever manages the group.

Skip it if

You need real income. At $20 to $35 per community you'd need dozens of buildings to replace a part-time job.

Source: r/passive_income thread, Jul 2026 (3,359 upvotes). Numbers are self-reported by the poster. Anonymous account with no product named, and the post ends by asking readers what to do next, a pattern common in planted posts.

02Rental▲ 3k on r/passive_incomeAnonymous, unverified

Renting out a storage unit's contents

Tools, a pressure washer, a generator, camping gear and tables from an inherited storage unit, rented out on Facebook Marketplace instead of sold.

$580 to $640/moas reported

  • $580 to $640Per month after the unit fee
  • $180/moStorage unit fee
  • 2 weekendsSetup time
  • 1 of ~35Bad returns
Where the idea came from
A friend asked why they were selling everything instead of renting it out.he just goes "why not rent it out instead" and it kind of clicked immediately.
First customers
Every item was listed on Facebook Marketplace as a rental rather than a sale.Spent 2 weekends photographing and listing everything on Facebook Marketplace as rentals instead of sales.
What made it work
Things people need for one weekend, like a pressure washer or a generator, earn more rented many times than sold once.

Copy this

Look at what you own that people use once a year. List it as a rental on Marketplace with a deposit and see what gets asked for.

Skip it if

You'd have to buy the gear first. The numbers here start from items that cost nothing.

Source: r/passive_income thread, Jun 2026 (2,962 upvotes). Numbers are self-reported by the poster. Anonymous account with no business named, and the inheritance story is a common shape for viral posts in this subreddit.

03Rental▲ 1.4k on r/passive_incomeAnonymous, unverified

Renting out a driveway

An unused three-car driveway listed for parking and storage on Prked, a marketplace for parking spaces.

$3,960 in 3 monthsas reported

  • $3,960Earned in 3 months
  • 5 starsRating
Where the idea came from
They had a driveway they didn't use and signed up for a parking marketplace.I signed up for Prked (Airbnb for parking and storage) 3 months ago to rent out my unused driveway
First customers
Renters came through the marketplace. There was no marketing.The whole thing pretty much runs itself without any issues.
What made it work
Nothing was built. The marketplace brought the demand; the owner only had to have space in a place where parking is scarce.

Copy this

If you live near a stadium, a hospital, an airport or a downtown with paid parking, check what spaces near you rent for before you list.

Skip it if

Street parking near you is free and easy. The money comes from scarcity, not from the listing.

Source: r/passive_income thread, Mar 2025 (1,449 upvotes). Numbers are self-reported by the poster. The post names the platform it earned on and ends with "ask me anything", so it may be marketing for that platform.

04Digital product▲ 1.2k on r/passive_incomeAnonymous, unverified

Selling recordings of old appliance sounds

About 70 recordings of old washing machines, microwaves, fridges and timers, sold on two stock audio sites.

$35 to $110/moas reported

  • $35 to $110Per month
  • ~70Clips uploaded
Where the idea came from
They recorded the machines in a relative's appliance repair shop before it was cleared out.Before throwing everything away, I recorded the sounds of some of the older machines because I do audio work as a hobby.
First customers
Buyers found the clips on the stock sites: mostly indie game developers and YouTubers.mostly purchased by indie game developers and people making YouTube videos
What made it work
The sounds can't be recorded again once the machines are gone, so there's little competition for them.

Copy this

If you have access to something that's about to disappear, like old machines, a closing shop or a rare place, record it and upload it before it's gone.

Skip it if

You're counting on it for bills. $35 to $110 a month is a nice surprise, not an income.

Source: r/passive_income thread, Jul 2026 (1,161 upvotes). Numbers are self-reported by the poster. Anonymous account; neither the stock sites nor the clips are named.

05Website▲ 205 on r/SideProject

duckmath.org, a games site from high school

An unblocked games site for students, built in high school and left mostly alone since.

~$10k a yearas reported

  • ~$10kPer year
  • 5 to 10 min, a few times a weekEffort
Where the idea came from
A site for students to kill time on school computers, built for fun.Back in high school, I built duckmath.org, an unblocked games site for students to kill time on school computers.
First customers
Organic traffic plus short TikToks. No paid ads.No SEO. No ads. Just organic traffic and some TikTok growth hacks.
What made it work
Students search for this every school day, and an old site keeps its traffic. Short videos are the only active marketing.

Copy this

Build for a need that comes back every day for a group that keeps renewing itself, like students or new parents, so the audience refills without you.

Skip it if

You want steady months. The founder notes traffic drops in the summer when school is out.

Source: r/SideProject thread, Jun 2025 (205 upvotes). Numbers are self-reported by the poster. The post doesn't say where the revenue comes from.

06Website▲ 715 on r/passive_income

dryoutside.com, built in one evening

A one-page weather site that tells you whether it's a good day to dry laundry outside.

Tips only, no figureas reported

  • 24kVisits in 2 weeks
  • 1 eveningBuild time
Where the idea came from
They wanted to know if the weather was good enough to hang clothes out, and tried building the answer with an AI assistant.based off an idea I had to create a tool that could tell me if the weather conditions are good enough to hang my clothes out to dry.
First customers
They shared the link in a few subreddits, and other sites and newsletters picked it up.I bought the domain www.dryoutside.com and starting sharing the link in a few places on reddit.
What made it work
One question, answered on one page, with a domain that says what it does. That makes it easy to share and easy for newsletters to mention.

Copy this

Pick a yes-or-no question people ask every day and build the one-page answer. An AI coding tool can get the first version done in an evening.

Skip it if

You need it to pay. The post shows traffic, and the only money mentioned is Buy Me a Coffee tips.

Source: r/passive_income thread, Jan 2026 (715 upvotes). Numbers are self-reported by the poster. No revenue figure is given.

What they have in common

  1. 01

    Someone else brings the buyers

    A marketplace, a stock site, an HOA or a property manager. Almost none of these six found customers one at a time.

  2. 02

    The work happens once, up front

    Two weekends of listing, one evening of building, one afternoon of recording. After that it's minutes a month.

  3. 03

    The money is small, and that's the honest version

    Four of the six earn under $700 a month. They're worth doing because the upkeep is tiny, not because they replace a job.

  4. 04

    It starts with something they already had

    A driveway, a storage unit, a relative's shop, a question from the neighborhood group. Look at what you already have before buying anything.

Questions

What is the most passive side hustle?

Of the six here, the appliance recordings on stock audio sites needed no work after upload and earn $35 to $110 a month. The trash-day text reminder takes about 20 minutes a month and nets $185.

How much can a low maintenance side hustle make?

Between $35 and about $1,320 a month in these examples. Four of the six earn under $700 a month, so treat them as extra income rather than a replacement for a job.

Which side hustles can you start without money?

Four started with something the owner already had: a storage unit's contents, a driveway, recordings from a relative's shop, and an evening with an AI coding tool plus a domain name.

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