Use "Ok Google" voice commands: Many Android devices allow you to activate Google Assistant by saying "Ok Google". You can use voice commands to perform a wide range of tasks such as making phone calls, sending text messages, setting reminders, and more.
Use automation apps: Automation apps such as Tasker and IFTTT can help to automate a wide range of tasks on your device, such as turning off Wi-Fi when you leave home, or turning on your alarm when you arrive at a certain location.
Customize your home screen: Customizing your home screen can help to make your device more efficient. You can use apps like Nova Launcher or Action Launcher to customize the layout and appearance of your home screen.
Use widgets: Widgets are small apps that run on your home screen, and can provide quick access to information and settings without having to open the app.
Use split-screen mode: Split-screen mode allows you to run two apps side-by-side, which can help to make your device more efficient and save time.
Use Google Keep for notes and reminders: Google Keep is a free note-taking app that syncs across all your devices. You can use it to take notes, set reminders, and create to-do lists.
Use Google Drive for backup: Google Drive is a cloud storage service that allows you to backup your files and photos. You can use it to backup your contacts, photos, and other important data.
Use Google Maps for navigation: Google Maps is a powerful navigation app that can provide turn-by-turn directions, real-time traffic updates, and more.
Use Google Calendar for scheduling: Google Calendar is a powerful calendar app that can help you keep track of your schedule, set reminders, and more.
Use Google Photos for photo management: Google Photos is a powerful photo management app that allows you to store, organize, and share your photos and videos.
It's important to note that some of these tricks may require an active internet connection, and may vary depending on the device and the Android version. Also, some of the apps mentioned may be pre-installed on your device, and some may need to be downloaded from the Google Play Store.