Lets make a list. I will add:
4)Always write emails, texts, letters with proper English punctuation and spelling. Whenever I read an email message written in slang, I immediately perceive the person to be uneducated. I am not saying you do not add a LOL in a email to your wife/sweat heart. However, when conversing with anyone other than a personal associate, write properly.
We could roll that up into #3.
I like to keep the list short, that way the minimum wage crowd doesn’t have the “easy for you to say” excuse.
Rule One when posting about grammar, spelling or punctuation. Triple check that thing.
“...proper English punctuation and spelling.”
You are asking for something that is out of reach for many. College graduates, including many who post on FR, don’t understand the use of pronouns and or homonyms. Even advertising copy which I would expect to be written by people who have a command of language often contains errors which would have gotten me thrown out of a fifth grade English class. I have actually seen their, there and they’re all used incorrectly in one paragraph on FR and possibly even in one sentence. I have seen the same with your and you’re. I begin to wonder what kind of people are being hired to teach language now.
I think “sweatheart” is one word. ;)