1. Clear headlines. 80 per cent of your readers decide based on your headline whether to read your message or not.
2. Brevity. Use short simple words. For example, pick the word Use over Utilize. Make sure that everyone understands you. Winston Churchill says, "Broadly speaking, the short words are the best, and the old words best of all."
3. Use numbered lists to tie your text together. Numbers make your message faster to read and easier to refer to.
4. Don't write when you can say it in person.
5. Does your writing sound like a real person talking? It should. Write the way you speak. I hope you don't speak the way most people write.
6. Learn your grammar. My grammar is horrible, I know. But at least I'm working on it.
7. Use sub-headings to make your long texts easier – and more interesting – to read.
8. End your message with a call to action. Make it clear exactly what you want your reader to do. I.e. "Can you comment this by the end business on Friday?"