To launch, Diapers.com bought products at full price from wholesale clubs like Costco. This "do things that don't scale" approach proved demand and built a customer base before they had manufacturer deals, despite losing more money per order.

Grüns' innovative daily gummy packs couldn't be produced with existing machinery. Instead of abandoning the idea, the team manually assembled products for the first 6-8 months, proving market demand with brute force before investing in and developing automated infrastructure.

To build a complex real-world business, the founding team did every job themselves. This hands-on experience provided critical insights that algorithms or data analysis alone could never uncover, such as knowing not to assign a driver if food isn't ready.

Early-stage founders can bypass slow, formal buying processes by approaching retailers directly. Jim Cregan of Jimmy's Iced Coffee secured a key listing at Whole Foods by simply walking into their HQ without an appointment and letting the product's compelling design speak for itself.

Before writing code, the founder acted as the "automation," manually inputting orders for the first 100 restaurants. This Wizard of Oz approach validated demand and the workflow with zero development cost, allowing for an instant launch.

In the early days, Bernie Marcus would run after customers who left empty-handed. He'd ask what they were looking for, then drive to a competitor, buy the item, and deliver it personally. This was not just customer service; it was a real-time method for product and market discovery.

Chomps' first major retail partner, Trader Joe's, operates uniquely by handling all in-store marketing and merchandising. This simplicity allowed the two-person founding team to scale into retail without needing a massive operations team, de-risking a critical growth phase.

Don't just ask customers about their business—independently verify it. When launching Uber Eats, the team couldn't get clear answers on restaurant economics. So they ordered food, weighed the ingredients, and built their own model, giving them the "ground truth" needed to confidently propose their pricing structure.

When Amazon acquired Instacart's largest partner, Whole Foods, it seemed like a death blow. Instead, Instacart framed it as a "wartime" moment. This acquisition terrified other grocery retailers, driving holdouts like Costco and Kroger to finally partner with Instacart as their e-commerce defense.