"Sorry, One Quick Thing..." — The Five-Sentence Reply That Stops Small Extras Eating Your Margin

Scope creep is rarely dramatic. Nobody emails to say "I'd like to add 30% to this project, please." Instead, your phone lights up at 8.40pm: "Sorry, one quick thing — could you just..."

You say yes. You're nice, you want the repeat work, and it'll only take twenty minutes. And it does only take twenty minutes. It's the thirty-seventh twenty-minute favour this quarter that stings.

The fix isn't a new contract template or a stern tone. It's a short reply you can keep in a note on your phone, plus ten minutes on a Friday to check what's been leaking.

Why the tiny extras are the expensive ones

Run the numbers once and you can't unsee them. A freelance designer at £45 an hour absorbing three twenty-minute extras a week is giving away an hour every week. Over a working year that's roughly £2,000 of unbilled time — and that's before you count the invoice chasing you didn't do because you were busy being helpful.

It looks different in every trade, but the shape is identical:

• A mobile hairdresser asked to "just squeeze in" a fringe trim between appointments.
• A bookkeeper asked to "quickly glance" at a spreadsheet on a Sunday evening.
• A copywriter on round four of what was described as the final round.
• A cake maker asked to "just add a little logo" the day before collection.

None of those are unreasonable requests. They're just unpriced ones.

The five-sentence script

Keep this in your notes app. Adjust the numbers, leave the structure alone.

1. The yes, first. "Happy to include that."
2. The name. "It's a separate bit of work from what we scoped — about half a day, all in."
3. The number. "I'd price it at £180, or we could take it out of the remaining revisions allowance."
4. The choice. "So: shall I add it as a small extra, or park it until after the [launch/installation/quarter-end]?"
5. The easy exit. "Either works — just let me know by Thursday and I'll hold your slot."

Five sentences. Agreeable, then factual, then a choice. That last part matters: you're not asking permission to charge, you're asking them to pick between two options you're happy with.

Three words to strike from your vocabulary while you're at it: just, quick, and sorry. "Sorry to be a pain, it's just a quick extra" tells the client you don't believe your own invoice.

The email version, with gaps to fill

Use this for anything that isn't urgent or emotionally loaded.

Subject: Quick note on the [project] — small extra

Hi [Name],

Thanks for the [logo files / extra visit / revised figures] — happy to sort that.

Small flag: [the extra] sits outside the scope we agreed on [date], so I've listed it as a separate item rather than folding it into the main job.

It's around [time] of work, which comes to £[amount] at my standard rate. Two options:

1. Add it now — I can have it with you by [date], invoice attached.
2. Park it — we finish [main milestone] first and pick it up in [month].

Whichever suits you best. Let me know by [day] and I'll keep the slot open.

Best, [You]

One line to avoid: "I hope that's OK." It turns a fair price into a question, and it invites the answer you don't want.

When to pick up the phone instead

Email is fine for a one-off. Switch to a call when:

• it's the third extra this month from the same client;
• the extra is worth more than about two hours of your time;
• their replies have gone short and formal (a warning sign);
• it's the very first piece of work you've done for them;
• or the words "a bit disappointed" have appeared anywhere in the thread.

A call needs three lines and then silence.

"Thanks for thinking of me for the extra — I'm up for it. Because it's outside the scope, I'd price it separately at around £X. Would you rather I add it now or pick it up after [milestone]?"

Then stop talking. The pause is doing the negotiating, not you.

The ten-minute Friday review

This is the habit. Ten minutes, every Friday, phone on silent, no spreadsheet needed.

Minutes 1–4: Open your notes and list every "quick thing" you did this week. Every one. The five-minute job counts.

Minutes 5–7: Tag each as billed, swapped, or absorbed. Most weeks you'll find two or three in the last pile.

Minutes 8–9: Add up the absorbed hours and multiply by your rate. That number is your creep tax for the week. Watching it wobble between £40 and £300 is far more motivating than a lecture on boundaries.

Minute 10: Choose one client to nudge next week, and write the first line of the email before you close the app.

That's it. One nudge a week is enough. You're not trying to have a difficult conversation with everybody; you're trying to stop the drift in one relationship at a time.

The sentence that prevents most of it

Prevention beats repair. Put this in every quote and proposal you send:

"One round of revisions is included. Further rounds are billed at £X each, and anything not listed above is quoted separately before it starts."

New clients read it as professional. Old clients read it as a reminder. Either way, the next "quick thing" arrives with a hook already in it.

If they push back

Some clients will. Most won't, and the ones who do tend to be the ones who were costing you the most. Three ways through it:

• Swap, don't add. "I can do that instead of the [newsletter header] this month — same time, no extra cost."
• Offer a tweak bank. A small monthly retainer covering, say, two hours of small changes. It converts unpredictable extras into predictable income and gives them permission to ask.
• Say no once, gently. "I'm at capacity for that this month, but I can start it on the 14th." Watch how they respond. It tells you a lot.

Start this Friday. Ten minutes, one client, one email. The relationship usually survives — and quite often improves, because clients who know where the edges are tend to trust the person who drew them.