Keep your data confidential, even from collaborators; submit the article as soon as possible to a reputable journal, because the reviewers will provide the most reliable feedback; and change everything the reviewers request without question :)
Only write about something you find interesting and when you feel you have something important to communicate to the research community.
Only include one main idea per paper.
Choose your target journal wisely (be realistic in your ambitions), study what has alread been published there, and include some relevant articles in your literature review.
Work with one co-author as this maximises quality and efficiency whilst retaining author kudos.
Follow the correct article genre using the journal's author's guidelines.
Learn how to write good academic paragraphs.
Make sure your grammar and presentation is of a sufficient quality as this will be the first thing the reviewers see.
Learn how to write a good title, abstract, introduction and conclusion as this is the first content the reviewers will see.
Aim for a major rewrite, not a perfect article.
If you succeed with a major rewrite, work doubly hard because this is the best way to learn how to write better.