Commandments for journalists

The Guardian has a great list of 25 commandments for journalists. My favorite is number 7:

7. If in doubt, assume the reader knows nothing. However, never make the mistake of assuming that the reader is stupid. The classic error in journalism is to overestimate what the reader knows and underestimate the reader's intelligence.
Related are George Orwell's six simple rules:
1. Never use a metaphor, simile, or other figure of speech which you are used to seeing in print.
2. Never use a long word where a short one will do. 
3. If it is possible to cut a word out, always cut it out. 
4. Never use the passive where you can use the active. 
5. Never use a foreign phrase, a scientific word, or a jargon word if you can think of an everyday English equivalent. 
6. Break any of these rules sooner than say anything outright barbarous.