11. Comparisons are as bad as cliches.12. Don’t be redundant; don’t use more words than necessary; it’s highly superfluous.13. Be more or less specific.14. Understatement is always best.15. One-word sentences? Eliminate.16. Analogies in writing are like feathers on a snake.17. The passive voice is to be avoided.18. Go around the barn at high noon to avoid colloquialisms.19. Even if a mixed metaphor sings, it should be derailed.20. Who needs rhetorical questions?