1. Remove most adjectives and adverbs (choose stronger nouns and verbs).
2. Shorten most sentences to one subject and one verb. 
3. Use active not passive voice nearly always. ("He did it" not "It was done.") 

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2 bonus tips for pronouns:
 
- Keep subject and object forms of pronouns straight: I/me, he/him, etc
- Review [rules for placing pronouns](https://www.chompchomp.com/terms/pronounreference.htm) in relation to antecedents  so readers know what you are referring to.