Writing correctly - especially for year 13

Here is a wonderful site about grammar, punctuation and language techniques.

From the same site is George Orwell's useful list of writing 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.

Orwell was a famous novelist whose works include Animal Farm and 1984.