I would offer you a blog post with more thought put into it today, but I'm preparing for the bonfire tonight and must leave posthaste.
Since it came up at lunch and Jenn had not seen it, check out “If you do this in an email, I hate you” from The Oatmeal. The “email signature” one is my favorite.
Thankfully, text messages and tweets do not allow the font and color adjustments of email (that's how the comic was brought up).
P.S. See what I did there?