1. Read your work out loud before you send it to us. Do you sound like a robot? An academic giving a presentation to fellow academics? Fix it.
2. Look for typos. PLEASE look for typos. Do not rely on your spellchecker to alert you.
4. Send only your best work.
I'm not trying to be harsh, but it doesn't make financial sake. If we are paying you (even if it's not a ton) I can't afford to pay myself to also do your job.