Some simple things to focus on to write more effectively, based on Orwell:
Orwell:
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.
Godin:
1. You don’t need cliches.
2. Avoid long words.
3. If it is possible to cut a word out, cut it out.
4. Write in the now.
5. When in doubt, say it clearly.
6. Better to be interesting than to follow these rules.
http://sethgodin.typepad.com/seths_blog/2011/06/writing-naked-nakeder-than-orwell.html