Some of the most helpful tricks is the use of ‘hotkeys’. Hotkeys, also known as keyboard shortcuts, make tasks easy and simple to use without clicking the mouse.
Ctrl + Z buttons is known as the ‘undo’ the last action.
Ctrl + P buttons turn on the print function.
Ctrl + S buttons is the ‘save’ button to whatever program or file you have open.
Ctrl + F buttons prompts the ‘find’ function so you can find words in documents or on a web page/site.
Check out more at Keyboard Shortcuts for Windows. (Macs also utilizes shortcuts)