Hustlo blog

Hustlo — Tue, 06 Oct 2026 00:00:00 GMT

If you run a business next to a job, you have a problem full-timers don't: time is short and comes in pieces. An hour in the evening, half a Saturday morning. Without a system, those hours go into deciding what to do instead of doing it.

This is a five-step weekly system built for people with 5 to 10 hours a week.

1. One phase at a time

Every project moves through different phases: idea, research, preparation, launch, growth. The first mistake is working on all of them at once: opening the store while you are still looking for the product, posting on social media before the website exists.

Decide which phase you are in and work only on the steps of that phase. Everything else waits.

2. The Sunday review: 20 minutes

Once a week, always at the same time, answer three questions:

What did I finish last week?
What do the numbers say: income, expenses, tests running?
What are the three most important things for next week?

Three, not ten. With only a few hours available, three things done are worth more than ten started.

3. Short blocks with a clear goal

Evening hours pay off when you start every session already knowing what to do. Before you end a session, write down the next concrete step ("write descriptions for the first 5 products", not "work on the store").

That way the next session starts right away, without the first twenty minutes lost remembering where you left off.

4. Your phone for the small stuff

Plenty of tasks don't need a computer: logging an expense, saving an idea, replying to a supplier, uploading a photo. Do them in the gaps, from your phone, and keep your computer hours for work that needs focus.

5. One number to check every week

Pick one number that tells you whether you are moving forward, matched to your phase:

in research: how many products or ideas you have actually evaluated;
at launch: how many sales or inquiries you have received;
in growth: your monthly balance against your target.

Checking it every Sunday turns the feeling of "I'm not getting anywhere" into a concrete figure, and it is often better than you think.

Key takeaways

Work on one phase at a time.
20 minutes of review a week, with three priorities.
End every session by writing down the next step.
Use your phone for quick tasks.
Check one number every week.

Hustlo — Sat, 10 Oct 2026 00:00:00 GMT

"I buy it for 8 and sell it for 24, so I make 16." Almost everyone does this math at the start, and it is almost always wrong. Between the selling price and what ends up in your pocket there are costs you only notice when the statements arrive.

What real margin is

Your real margin per sale is what you keep from a single order after subtracting every cost tied to that order. It does not yet include monthly subscriptions and fixed expenses: those come later, when you calculate break-even.

The basic formula is:

real margin = revenue − product cost − shipping − packaging − fees

where revenue is what the customer pays, including shipping if you charge for it.

The costs people forget

The shipping you pay. Even if you charge the customer for shipping, what the carrier actually costs you can differ from what you bill.

Store fees. Marketplaces and platforms usually keep a percentage of each sale, often calculated on shipping too, and sometimes a fixed fee per order or per listing. Every platform has its own rules and updates them, so always check the current rates.

Payment fees. Whoever collects the money for you (the platform or a payment network) typically keeps a percentage plus a small fixed fee per transaction.

VAT on fees. If you sell without an EU VAT number, some platforms charge VAT on their own fees. It is a small amount per order, but across hundreds of sales it adds up.

Packaging and materials. Boxes, mailers, thank-you cards: a few cents each, and they still count.

A complete example

A print-on-demand poster sold on a marketplace:

price: €24.00 plus €4.50 shipping, so revenue of €28.50;
printing cost: €8.20;
shipping paid to the supplier: €4.50;
store and payment fees, including VAT on fees: €4.23.

Real margin: 28.50 − 8.20 − 4.50 − 4.23 = €11.57, or about 41% of revenue. A long way from the €16 of the back-of-the-envelope math.

From margin to decisions

Once you know your real margin, three questions get easy:

How many sales do I need to cover fixed costs? Divide your monthly fixed costs by your margin. That is your break-even point.
How much can I spend on ads? Your cost per sale has to stay below your margin, or every sale loses you money.
Is my price right? If your margin is below 25-30%, any surprise (a return, a supplier price increase) pushes you into a loss. Consider raising the price or switching suppliers.

Key takeaways

Real margin is revenue minus every cost of the order.
Count shipping, store and payment fees, VAT on fees and packaging.
Use your margin to calculate your break-even point and your maximum ad budget.

Hustlo — Tue, 13 Oct 2026 00:00:00 GMT

Most campaigns don't fail because the product is wrong. They fail because nobody decided upfront how much to spend and when to stop. You watch spend go up, hope for a sale tomorrow, add more budget. The result is always the same: money spent and nothing learned.

The fix is easy to state and hard to follow: turn every campaign into a test, with a stop rule written down before you launch.

Why you need a rule set in advance

Once a campaign is live, every decision is emotional. You just uploaded the creatives, you spent days on them, and stopping feels like failure. That is why the rule has to be set with a clear head, before you spend the first euro.

A good stop rule has three traits:

it is a number, not a feeling ("if I spend €45 with no sales, I stop");
it is tied to your margin, not to the budget you feel comfortable spending;
it always leads to a decision: continue, change something, or shut it down.

How to calculate the threshold from your margin

The starting point is your real margin per sale: what you keep from a sale after product cost, shipping and store fees.

A widely used rule of thumb is: stop if you spend twice the margin of one sale without selling anything. It is not a universal law, but it is a good starting point: it gives you enough spend to collect some data without burning through your budget.

An example:

selling price plus shipping: €28.50;
costs (product, shipping, fees): €16.93;
real margin per sale: €11.57.

Twice the margin is about €23. If you want to give the test more room, you can raise the threshold, but you have to decide that upfront and write it down.

Minimum return: the second threshold

Sales are coming in, but is the campaign actually worth it? This is where the minimum return on ad spend comes in: the ratio of revenue to spend below which you lose money.

Here is how to calculate it: revenue per sale divided by margin per sale. With the numbers above, €28.50 divided by €11.57 is about 2.46. That means for every euro you spend on ads, you need to bring in at least €2.46 to avoid a loss.

If the return stays below this threshold after a reasonable number of sales, the campaign is not sustainable as it stands: change it or shut it down.

The three possible decisions

At the end of every test, whether you hit the threshold or reached the end date, pick one of three paths:

Continue: cost per sale is below your margin and the return is above the minimum. You can increase the budget gradually.
Change: there are signals (clicks, add-to-carts, a few sales) but the numbers don't add up. Change one thing at a time: the audience, the creative or the price.
Stop: no signals, threshold exceeded. Shut it down without regrets and write down what you learned.

That last part matters most. One line written at the end of every test ("audience too broad", "photos unclear") is worth more than any course.

Key takeaways

Set your maximum budget and stop threshold before you launch.
Calculate the threshold from your real margin, not from your budget.
Use the minimum return to tell whether your sales are worth it.
End every test with a decision and one line about what you learned.