Checklist for Statistics
I came across this statistical checklist from Nature. It details some common errors that many authors make in their manuscript, and Nature encourages authors to check this list before submission.
I thought some were pretty obvious, but, then again, maybe people need to hear the obvious anyway.
http://www.nature.com/nature/authors/gta/Statistical_checklist.doc
Nature also has encourages additions to this list. Send them to referees@nature.com.