The 'One Thing' Rule: Why Fixing Five Marketing Problems at Once Fails

03 October 2026·3 min read

Quick answer: A business that decides to fix its website, start posting on social media, launch Google Ads and build an email list all in the same month usually ends up doing a mediocre version of all four instead of a genuinely good version of one, and worse, with everything changing simultaneously, there's no way to tell which change actually worked. The 'One Thing' rule is simple: pick the single highest-leverage marketing fix, commit to it properly for a set period, and resist adding a second initiative until the first one has had a fair, measured trial. 🚀

Here's a pattern that quietly sabotages a lot of ambitious small business marketing: enthusiasm arrives all at once, and so does every initiative, new website, new social strategy, new ad campaign, new email sequence, launched in the same few weeks. 💖 Then three months later, something's working better, but nobody can say what, because everything changed at the same time.

What most businesses get wrong

Multiple marketing initiatives get launched simultaneously out of enthusiasm or urgency, with no way to isolate which change is driving any result. 'Doing more' gets treated as inherently better than doing one thing well, and a genuinely good initiative gets abandoned too early because attention and effort got split too thin to give it a fair trial.

The one thing decision filter

List every marketing idea currently competing for attention
For each, estimate genuine potential impact AND how much focused effort it needs to work properly
Pick the single highest-impact, achievable-with-current-resources option
Set a specific trial period, usually 60–90 days, before judging results
Write down explicitly what you're deliberately NOT doing yet, so good ideas aren't lost, just sequenced

A booking-based business with lots of no-shows: had five marketing ideas competing for attention and used the filter to commit first to a simple SMS confirmation and reminder sequence, since no-shows were the single most measurable, highest-impact problem, before touching social media strategy at all.

A B2B firm with a long sales cycle: resisted launching paid ads and a new content strategy simultaneously, choosing content first since the sales cycle was long enough that ad results wouldn't be meaningfully measurable for months anyway.

A local service business with a seasonal dip: picked one single initiative, a simple off-peak offer email to its existing database, rather than spreading effort across five new ideas during its quietest, lowest-energy period of the year.

How to make it stick

Write the 'not doing yet' list somewhere visible, a shared document or simple note, so deprioritised ideas don't feel abandoned, just sequenced. Set a calendar reminder for the end of the trial period to force an actual review rather than letting focus drift. Resist the urge to add 'just one more thing' mid-trial, even when a new idea feels urgent.

💡 Write down what you're saying no to, not just what you're saying yes to. A visible 'not yet' list makes it easier to stay disciplined about one initiative at a time, because good ideas feel parked, not lost.

Mistakes to avoid

Launching multiple initiatives simultaneously with no way to isolate results
Treating more activity as inherently better than focused effort
Abandoning a good initiative too early because attention was split too thin
Never setting a specific trial period or review date
Letting urgency override a deliberate sequencing decision

Frequently asked questions

Isn't this too slow for a business that needs results now?

Honest nuance: genuine urgency sometimes does justify parallel efforts, but most 'urgency' is actually just enthusiasm, and a focused 90-day trial on the right single lever usually beats a scattered effort across several.

How do you pick which 'one thing' matters most?

Favour whatever addresses the most measurable, highest-friction problem in your current customer journey, rather than whatever feels most exciting to start.

What if the one thing doesn't work?

That's useful information too, as long as it was given a genuinely fair, focused trial, rather than being one of five half-attempted things competing for the same limited time.

Keep reading 🤍

Written by

Kate, founder of Chronically Online

I help Gold Coast and Brisbane businesses grow with branding, websites and marketing that actually works.

Work with me ✦