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.
I have come across these six fine pointers in an interesting article by Georgre Orwell. They say a whole lot about the craft of writing and I think that its obligatory for anyone working towards bettering their writing career and capabilities to keep them in mind.
Keep it simple. Just do it.