Ctrl + Alt + Tab -- Shows all open apps. Use the arrow keys to hop from one to the other. Win + Tab -- Opens Task View, revealing all open windows and all open desktops. Win + D -- Hides every window ...
Press a few buttons, and you can accomplish hundreds of computer tasks, from simple to sophisticated, without taking your hands off the keyboard ...
Ctrl + M: Enter Mark mode (allows you to select text with mouse). Once Mark mode is enabled, you can use the arrow keys to move the cursor around. Shift + Up or Down: Move cursor up or down one line ...