These days, we tend to communicate via the keyboard as much as we do verbally. Often, we’re in a hurry, quickly dashing off emails with typos, grammatical shortcuts (I’m being kind here), and that breezy, e.e. cummings, no-caps look. It’s expected. It’s no big deal. But other times, we try to invest a little care, avoiding mistakes so that there’s no confusion about what we’re saying and so that we look professional and reasonably bright.