You can use your smartphone to improve daily productivity by leveraging built-in tools and apps such as calendars for scheduling, task managers for to-do lists, reminder apps for important deadlines, and note-taking apps for quick ideas. Utilizing focus timers like the Pomodoro technique through dedicated apps can enhance concentration. Additionally, minimizing distractions by setting app limits and enabling "Do Not Disturb" mode during work periods helps maintain focus. Integrating cloud storage allows seamless access to files across devices, ensuring efficiency on the go.