Using a keyboard on your PC or tablet? If you're not using keyboard shortcuts then your wasting time that could be spent doing something more interesting!
Here's some of our best-loved time savers:
Ctrl + C (Copy)
Ctrl + V (Paste)
Ctrl + Z (Undo - we know, you're perfect and will never need this feature!)
Ctrl + Shift + T (Reopen the last closed tab - admit it, it happens...)
Ctrl + F (find/search)
F3 (Search)
Double-click mouse (select entire word)
Ctrl + A (Select All - everything)
Alt + click mouse (Select START of specific region of text that you want to select)
Shift + click mouse (Select END of specific region of text that you want to select; the END point could be several pages down, saving wasted time using that scroll wheel!)
Alt + F7 (Move to the next misspelled word - again, we know that you always have excellent spelling!)
Alt + TAB (switch between apps)
Windows logo + Left arrow (view two apps side-by-side, called "Snap Assist"; once first app is 'snapped' into position, select the next app from the list of tiles on the right)
Windows logo + L (Lock - a.k.a "Lunch break - hands off my computer!")
Windows logo + Ctrl + D (Create a virtual Desktop, a.k.a "the boss is coming")
Windows logo + Ctrl + F4 (close the virtual Desktop)
Windows logo + TAB (Move between your secret virtual Desktops that you've created)
Windows logo + "+" [plus key] (Zoom in, a.k.a "forgot my specs")
Windows logo + "-" [minus key] (Zoom out)
...and here's a link to the full list, so that you can become a Keyboard Shortcut Instructor: https://support.office.com/en-us/article/Keyboard-shortcuts-in-Word-Online-4ccbb899-f71e-4206-be6f-1d30c7d1bd13?CTT=1&CorrelationId=2bb2ca4e-91b7-4be5-abed-f99fd495492f&ui=en-US&rs=en-US&ad=US