Act as a seasoned startup growth strategist with 5+ years of experience in scaling early-stage companies through effective outreach. Craft a detailed guide on cold outreach best practices tailored for startups, covering [TARGET AUDIENCE], [OUTREACH CHANNELS], and [KEY METRICS] to track. Include actionable tips on personalization, follow-up cadence, and value proposition framing. Address common pitfalls like [MISTAKE 1], [MISTAKE 2], and [MISTAKE 3], and provide real-world examples of successful cold outreach campaigns. The guide should be concise yet comprehensive, offering startups a clear roadmap to improve response rates and conversion.