A US-based Amazon FBA business, launched in September 2025, operates under a single private-label brand offering products like a stand-up weed puller and a car wash foam gun. These products have seasonally complementary sales patterns, with peak demand for garden and automotive tools occurring from March to June. Financial analysis from September 2025 to July 2026 reveals a revenue stream of $268,622, resulting in a net profit of $37,810 and a 14% net margin after accounting for all fees, costs of goods sold, freight, and advertising. The business experienced a particularly successful spring season in 2026, with revenues of $172,281 and a net profit of $40,526, achieving net margins between 19% and 34% during the peak months. Throughout this period, the business sold a total of 10,579 units, with ad spending as a percentage of revenue decreasing significantly from 22% in October 2025 to between 5% and 10% from March to June 2026. The business highlights potential for growth by employing a successful ad strategy around Halloween 2026 and planning to expand its product line further. Additionally, there are opportunities to tap into EU, UK, and JP marketplaces, as well as explore platforms like TikTok Shop and Walmart. The business benefits from being fully fulfilled by Amazon, maintaining strong supplier relationships in China, and having validated seasonal playbooks based on actual sales data, facilitating ease of operation without the need for warehousing or additional staff.