To maintain inbox organization and reduce unwanted emails, Gmail users can utilize various features such as blocking, reporting spam, and unsubscribing from senders. Blocking prevents future messages from reaching the primary inbox, while reporting spam helps identify similar messages for better filtering. Unsubscribing removes newsletters from recurring email senders without compromising safety. Users can block emails on their desktop or mobile app, report phishing attempts, and automatically delete incoming emails from specific senders without opening them. Additionally, Gmail offers an unsubscribe option at the top of emails to simplify removal from marketing messages. By implementing these strategies, users can effectively manage their inbox and reduce clutter.