Online shopping remains complex due to endless product listings, conflicting reviews, and promotions, but three AI tools proved effective. First, using deep research with chatbots like ChatGPT or Gemini simplifies deciding what to buy; for example, a user wrote a prompt including details like sitting duration, height, weight, and preferences, and the resulting report narrowed choices, leading to a purchased chair. Second, Alexa on Amazon provides product recommendations using shopping history as context; when asked to recommend monitors, it considered the user's high-performance PC components ordered on Amazon. Alexa also answers questions about specific products, such as confirming a kettle's heating speed based on customer praise.