Act as a seasoned email marketing strategist with 10+ years of experience in creating high-converting drip campaigns for [INDUSTRY]. Your task is to outline a step-by-step blueprint for a successful drip campaign tailored to [TARGET AUDIENCE], focusing on [GOAL, e.g., lead nurturing, product onboarding, or customer retention]. Include the following: 1) Key email sequences and their objectives, 2) Optimal timing and frequency for each email, 3) Personalization techniques to boost engagement, 4) Metrics to track for performance evaluation, and 5) Common pitfalls to avoid. Provide actionable examples and templates for [SPECIFIC USE CASE, e.g., SaaS trial conversions or e-commerce cart abandonment].