When is the caps lock most useful?

Caps lock is most useful when you need to emphasize a particular Word or phrase, such as in headings or titles, making it stand out. It's also handy for typing acronyms or abbreviations that are typically written in all capital letters. Additionally, it can be useful in situations where you want to convey urgency or importance, although it's best used sparingly to avoid coming across as shouting in written communication.