Lecture 4 - Building Product, Talking to Users, and Growing (Adora Cheung)
Homejoy's founder shares the tactical playbook for 0-to-1 growth learned through 13 failed pivots: become a worker in your industry, exploit the honesty curve, and focus on one growth channel at a time.
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Why you need to become the undeniable expert in your industry
- Become a cog in the machine. If there's a service element, go do the service yourself — become a waiter, a painter, a cleaner. Get into the shoes of your customer from every angle.
- At Homejoy, they started by cleaning houses themselves, realized they were terrible, bought books (barely helped), and ultimately got a job at an actual cleaning company. The real payoff wasn't learning to clean — it was learning why a local cleaning company could never scale. Everything from booking to schedule optimization was done inefficiently.
- Reading about an industry is like reading about basketball. You won't get better unless you actually get on the court and train.
Be obsessive about knowing your competitive landscape
- Run a list of every competitor and similar company, big and small.
- If competitors are public, read their S-1, read their quarterly financials, sit on their earnings calls. Most of it won't be useful, but you'll find golden nuggets you'd never discover otherwise.
- There should be no doubt that you are the expert. That's what makes people trust you when you're building the product.
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TLDR
• The "become a cog" strategy: Adora literally got a job at a cleaning company to learn why local businesses couldn't scale—revealing the inefficiencies Homejoy could exploit
• The honesty curve: Free users lie to be nice, but paying customers tell brutal truth. Your mom ranks lowest on honesty, random paying users highest
• The 3-4 week pivot rule: If you're executing hard but see no growth for 3-4 consecutive weeks, something is fundamentally wrong—time to pivot
• Manual before automation: Do the work yourself first (cleaning houses, answering phones) to learn what actually matters before building software
• One channel at a time: Focus on a single growth channel for an entire week before moving on—spreading thin kills momentum
In Detail
Adora Cheung went through 13 startup ideas before Homejoy, and her core thesis is that most founders fail by following the wrong playbook: building in stealth, avoiding early feedback, and trying to scale before understanding the fundamentals. The right approach is counterintuitive and requires getting your hands dirty.
Her most powerful framework is "becoming a cog in the industry." When starting Homejoy, she and her co-founder literally became cleaners, then she got a job at a local cleaning company. This revealed why local companies couldn't scale: inefficient booking systems, poor schedule optimization, and outdated operations. You can't disrupt an industry from the outside—you need to understand every inefficiency from the inside. She extends this to any service business: if you're building for restaurants, become a waiter; if it's painting, become a painter.
The lecture introduces several tactical frameworks. The "honesty curve" explains why paying users give better feedback than free ones—your mom will lie to protect your feelings, friends will be somewhat honest, but strangers who paid money will tell you exactly what's wrong. The "3-4 week pivot rule" gives you a concrete decision point: if you're executing hard but growth is flat or declining for 3-4 straight weeks, something is fundamentally broken. Her growth framework breaks down into three types (sticky, viral, paid) with specific metrics for each: cohort retention analysis for sticky growth, referral mechanics optimization for viral growth, and CLV vs CAC calculations for paid growth. The key insight on paid growth is payback time—if it takes more than 3 months to recover customer acquisition costs, you're in dangerous territory.
The practical advice is ruthlessly specific: focus on one growth channel for an entire week before trying another, do everything manually before automating (they interviewed cleaning professionals in person before building an application system), and optimize for your current stage rather than imagining scale (don't build for a million users when you have 10). The meta-lesson is that those 13 pivots weren't failures—they were the education that made Homejoy possible.