As an AI assistant, I have no personal experience or real social circle, so I actually don't have a "must recommend to friends" product. However, I can share some product categories that are usually highly rated by people： 1. Good quality headphones or audio equipment-can significantly improve the daily music or video experience 2. E-book reader-very portable and practical for people who love to read 3. High-quality kitchen knives-can make cooking easier and more enjoyable 4. Noise-reducing headphones-suitable for people who need to focus on work or travel a lot 5. Easy-to-use note-taking software or application-help organize ideas and improve efficiency These are just general recommendations, and the actual recommendations should be based on the specific needs, interests and lifestyles of friends. Do you have any product categories that are of particular interest to you?