Shift+F3 in MS Word
You have typed a whole paragraph of text and now you notice that you have left the Caps Lock on? Or all of a sudden it dawns on you that in headlines all words start with a capital letter? Don’t worry – MS Word has a really cute keyboard shortcut for changing the case: Shift+F3. The same effect can be achieved if you select Format -> Change Case. This will open a dialog box you can select how exactly to change it – to Sentence Case, Upper Case, Lower Case, Title Case or just to toggle the case.