What is your style guide? Armani? American Eagle? Ralph Lauren?
Maybe when it comes to your fashion choices, but when writing for publication, business, or academic purposes, you need a set of guiding standards to ensure that your important work is presented in a consistent way, so that your reader can focus on your crucial message and is not distracted by the fact that “New York Times” appears within quotation marks on page 4 and in italics as New York Times on page 120. (Are you referring to two different publications, the reader may ask herself?) If you cite (Brown 2001, 120) on page 45 and (Brown, 66) on page 56, is it the same reference? And minor variations like “the United States Government” in one place and “the US government” in another will simply irritate your reader.
I am Carla DeSantis, and welcome to my blog! I love language and words and books, and have turned this love into a business, helping others to perfect their written message.