When should I start a second product vs. doubling down on my current winner?

The instinct to diversify into a second product before fully extracting value from the first is one of the most common profit-limiting mistakes at the $200–500/day revenue stage.

• Double down first: If your current product is profitable, your priority is maximizing that product's ceiling before splitting your attention. That means: new creative angles, offer engineering (bundles, upsells), email flows if you haven't built them, and geographic expansion. Most winners have 3–5× their initial scale available if you extract it properly.
• Right time to add a second product: When you've genuinely hit the ceiling on your current winner — frequency is high, creative fatigue sets in consistently, no new angles are outperforming baseline, and you've built the backend systems. This usually happens at $500–1,000+/day consistent revenue, not at $100/day.
• Second product on a separate store or same store? If the second product serves the same audience (complementary to your current offer), same store can work and the email list becomes a launch advantage. If the product serves a completely different audience, a separate store with its own pixel is cleaner.