Start with your audience – Remember, your readers may know nothing about what you're telling them. What do they need to know first?
Create an outline – This is especially helpful if you're writing a longer document such as a report, presentation, or speech. Outlines help you identify which steps to take in which order, and they help you break the task up into manageable pieces of information.
Try some empathy – For instance, if you're writing a sales letter for prospective clients, why should they care about your product or sales pitch? What's the benefit for them? Remember your audience's needs at all times.
Use simple language – Unless you're writing a scholarly article, it's usually best to use simple, direct language. Don't use long words just to impress people.