My PC at work stays on caps lock. Its not because I'm shouting at my clients its because the IRS likes it. Why doesn't everyone just use caps all the time. Being PC doesn't expedite anything that's for sure.
The series of words that form a statement/question are called a sentence. A capital letter at the beginning, with a period at the end. Next week we will discuss paragraphs, run-on sentences, and comma splices. Tune in! LOL!