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Unleash your inner entrepreneur - Developing Your Big Idea - Part 2/10

Discover how to find, capture, and filter your best business ideas — with lessons from Sara Blakely's journey to building the Spanx empire.

By S. Mitchell

Where Do Your Best Ideas Come From?

Ideas are gifts — unexpected, fleeting, and incredibly valuable. The moment one surfaces, your job is simple: catch it. The more you capture your ideas and give them room to breathe, the more they multiply. Think of it as a creative feedback loop: the universe rewards those who pay attention.

But before you can capture great ideas, you need to know when and where they tend to arrive. That starts with getting quiet.

Find Your Thinking Zone

For Spanx founder Sara Blakely, her best ideas come in the car. It took her a while to figure that out — but once she did, she acted on it deliberately. Despite living just six minutes from her office, Sara began what her friends affectionately call a "fake commute": waking up an hour early and driving aimlessly around town just to give her mind the space it needed to wander.

It sounds unconventional. It absolutely worked.

With the radio on and no agenda, ideas would flood in. Problems would untangle themselves. Breakthroughs would happen. It was during one of these drives — stuck in Atlanta traffic — that the name Spanx came to her. After two years of searching, scribbling bad names on rental car agreements, gum wrappers, and scrap paper, the word "SPANKS" suddenly appeared in her mind's eye, projected across the dashboard. She pulled over immediately and wrote it down.

That night, she visited the US Patent and Trademark Office website (USPTO.gov) and filed a trademark for $150. At the last moment, she changed the spelling — swapping the K and S for an X — because her research showed that made-up words tend to outperform real ones in product branding. All of that clarity came to her in the car.

Albert Einstein, for his part, reportedly had some of his most profound insights while shaving. The location matters less than the pattern. Your best thinking spot is uniquely yours — and it's worth finding.

So ask yourself: where does your mind do its best work? Is it in the shower? On a morning run? Driving with the windows down? Whatever your version of the "fake commute" looks like, block that time in your calendar and treat it as non-negotiable. This isn't about ticking off your to-do list — it's about giving your mind the freedom to roam.

If you're reading this thinking "my mind never wanders," don't worry — that just means it's time to create the conditions for it to start. Carve out genuine alone time. Resist the urge to fill every quiet moment with a podcast, a scroll, or a conversation. The magic tends to happen in the silence.

Train Yourself to Ask "Why?"

Once you've found your thinking space, give your mind a direction to wander in. The single most powerful question any entrepreneur can ask is: Why?

  • Why does this product or service exist in its current form?
  • Why is it done this way?
  • Why hasn't this space evolved in years?
  • Could there be a better way?

Sara Blakely makes this a daily habit. She questions everything — not critically, but curiously. And that curiosity is a wellspring of ideas.

Here's a practical exercise: spend one week writing down everything that frustrates, annoys, or inconveniences you. Then, for each item, spend a moment asking why it's that way and jot down a potential solution. You'll be surprised how quickly a genuine idea begins to take shape.

Sara herself once sat in a salon chair, sweltering under a hair cape, and thought: why isn't there a more breathable version of this? She wrote it down. That idea may never have become a Spanx product — but that wasn't the point. The point was to keep the idea muscle flexing. The more you practise noticing problems and imagining solutions, the more naturally ideas come to you across every area of life.

Keep a dedicated notebook — physical or digital — and log every idea, no matter how rough or half-formed. Then revisit the list regularly. You'll notice that certain ideas keep surfacing. Those recurring ideas deserve your closest attention.

To summarise the process so far:

  1. Discover where and when you do your best thinking — and protect that time.
  2. Log every idea. Never let one slip away.
  3. Revisit your list and notice which ideas keep coming back.

How to Filter Your Ideas

Generating ideas is exhilarating. But not every idea is the right one to pursue — and part of being a smart entrepreneur is knowing how to filter them effectively. Once you've built up a solid list, run each idea through the following framework.

The Three Core Resources

Every business idea will ultimately be constrained by three things:

  • Time — How long will it realistically take to bring this to life?
  • Money — What are the approximate startup and ongoing costs?
  • Resources — What skills, tools, or people will you need?

Key Questions to Ask About Each Idea

  • Difficulty: How complex will it be to produce or deliver?
  • Cost: What will it approximately cost to get off the ground?
  • Manufacturing complexity: Does it require one supplier or many?
  • Weight and shipping: If it's a physical product, what will fulfilment cost?
  • Human resources: Can you build this alone, or will you need a team with specialist skills?

Does the Market Actually Need This?

Perhaps the most important filter of all is market need. Finding a gap in the market is exciting — but a gap isn't always the same as an opportunity. Consider a vacuum cleaner that also makes spaghetti: yes, it's unique. Yes, it fills a "white space." But how many people are actually searching for that solution?

A great business idea sits at the intersection of two things: a problem worth solving, and an audience large enough — or passionate enough — to pay for the solution. Keep that lens on as you evaluate your shortlist.

Key Takeaways

  • Ideas are fleeting — capture every one immediately, no matter how small or rough it seems.
  • Identify your personal "thinking zone" (the time and place where your best ideas emerge) and schedule it deliberately.
  • Asking "Why?" consistently is one of the most powerful habits an entrepreneur can build.
  • Keep an ongoing idea log and pay close attention to ideas that resurface repeatedly.
  • Filter your ideas through time, money, and resources before committing to one.
  • A market gap is only valuable if there's genuine demand — always validate the need.

Your Action Steps

  1. Identify your best thinking environment today — shower, commute, walk — and block 30 minutes of uninterrupted time for it in your calendar this week.
  2. Start an idea log right now: open a notebook or a notes app and write down every idea, frustration, or "wouldn't it be great if..." thought you've had recently.
  3. Spend the next seven days writing down one thing per day that annoys or inconveniences you, then jot a rough solution next to it.
  4. Review your existing idea list and run your top three ideas through the filter: time, money, resources, complexity, and market need.
  5. Research whether your strongest idea has real demand — search forums, social media, and Google Trends to see if people are actively looking for a solution like yours.