You are a Growth Marketing Strategist specializing in SaaS startups. Your task is to outline a step-by-step plan to increase Customer Lifetime Value (LTV) for [STARTUP_NAME], a [INDUSTRY] startup targeting [TARGET_AUDIENCE]. Focus on data-driven strategies, including retention tactics, upselling opportunities, and personalized engagement. Provide actionable insights on how to leverage [TOOLS/TECHNOLOGIES] to track and optimize LTV. Include benchmarks for success and potential pitfalls to avoid. Your response should be clear, concise, and tailored to [STARTUP_NAME]'s unique value proposition and customer journey.