In Microsoft Office, you can repeat your previous action performed using the F4 key on the keyboard. The computer remembers your previous action and this can be repeated using F4.
For example say you have drawn a table using the tools menu in word and you need to repeat the same table in another page or another word document. This time you need not got to the menu, just click on the place where you need to table and press F4, done you have the new table. Note that computer remembers the last action and in between you do any other action, it will repeat the last action.
This tip is helpful when you are doing lots of formating in Word or Excel sheets. Hope you enjoyed reading this tip.