Danny Rubin, former news reporter, has created an online resource called “News to Live By.” In his words, Rubin defines his website as one that “highlights the career and leadership lessons “hidden” in the day’s top stories” because “headlines are full of practical ways we can get better at our jobs.

In his article, “7 Words You Need to Stop Capitalizing”, Rubin says that correctly handling upper and lowercase words “shows poise, smarts and maturity” and it’s “one more way to distance yourself from the competition.”

Rubin observes that many people capitalize things that they think are important, such as “I secured an Internship for this summer” or “We’ve started Day One of the expedition.”

So capitalization matters. Here are some commonly capitalized things that … well, shouldn’t be.

Job titles

Job titles should be lowercase unless they come before your name (ex. “I went and talked to Marketing Coordinator Jim Styles.”) or after your name (ex. “Jim Styles, Marketing Coordinator, works with me.”)

            incorrect: “I’m the Graphic Designer for Talia Inc.”

            correct: “I’m the graphic designer for Talia Inc.”

College majors 

College majors and minors are lowercase unless you’re actually describing a program and/or school. For example: “I studied advertising at the Greenlee School of Journalism and Communication at Iowa State University in Ames.”

            incorrect: “In college, I Majored in Communication Studies and Minored in History.

            correct: “In college, I majored in communication studies and minored in history.”

note: “English” is always capitalized as it’s a proper noun. (ex. “I majored in English, minored in communication studies.”)

 Seasons

The four seasons are lowercase unless they’re included in a proper title (ex. “Be a part of this year’s Winter Wonderland Showcase.”

            incorrect: “I started at ISU last Fall.”

            correct: “I started at ISU last fall.”

Directions

Directions are lowercase unless you’re writing about a specific part of the country (ex. “I live in the South, but my sister lives on the East Coast.”)

            incorrect: “I’m heading West after I get my degree.”

            correct: “I’m heading west after I get my degree.”

source: http://www.newstoliveby.net/2014/12/09/how-do-you-capitalize/