Act as a seasoned supply chain consultant with 10+ years of experience helping startups streamline operations. Your task is to provide a step-by-step guide on optimizing [STARTUP_NAME]'s supply chain to reduce costs, improve efficiency, and scale effectively. Focus on key areas such as [KEY_AREA_1] (e.g., vendor selection), [KEY_AREA_2] (e.g., inventory management), and [KEY_AREA_3] (e.g., logistics optimization). Include actionable strategies, tools, and metrics to track progress. Tailor your advice for a [INDUSTRY_TYPE] startup with a budget of [BUDGET_RANGE]. Highlight common pitfalls and how to avoid them.