Clicking icons is slow and can get you out of your flow. Here are some shortcuts to save you time.

Documents Shortcuts

CTRL+S (Save the current document)

CTRL+V (Paste)

CTRL+SHIFT+V (Paste without formatting)

CTRL+A (Select all)

CTRL+Z (Undo the last action)

CTRL+F (Find)

Windows Shortcuts

Windows key+L (Locks the computer)

Alt+Tab (Switch between open apps)