Tyler Cowen had a nice post in which he commented on an expertly written article--expertly written in every sense of the word--by Preston McAfee on what makes a good editor. I would expand this description to say that this article is extremely beneficial for junior economists on how to write good papers, and how to avoid writing really bad ones. I would recommend reading the whole article to any economist whose job depends on publishing articles in refereed journals, but here are a few of my favorite quotes and nuggets of wisdom from the paper.
...A personal agenda is a bias, and when it matters, will lead to bad decisions. As everyone has biases, this is of course relative; if your reaction is "but it isn't a bias, I'm just right" you have a strong personal agenda.