Split screen
Split-screening windows: Alt + [ pins the current window to the left side of the screen and Alt + ] pins the current window on the right side of the screen, making it far, far easier to reference your notes while you write your history report or write helpful technology articles. Alt + = will make a window full-width again without making it fullscreen, which hides the address bar, tabs, and toolbars.
Open and Close tabs
Ctrl + T opens a new tab
Ctrl + W closes the currently selected tab.
Screenshots
Ctrl + Overview (the button that looks like a stack of windows)
Documentation Creation
Shift + T creates a new Doc while in Google Docs, Shift + S creates a new Sheet, and Shift + F creates a new Folder, and if you're going to be using Google Drive for all your notes, homework, and random daydreaming stories throughout the year, create folders early and often to keep things organized.
Voice Typing
Voice typing: Ctrl + Shift + S will start voice typing, allowing you to add more text to your document without having to type it all out.
Lock Screen
Crtl +Shift + L- lock screen