Write well. Write often. Edit wisely.
What happens to the comma when you have a question mark or exclamation point midsentence where a comma should go?
Learn how to choose between italics and quotation marks. Learn when more than capital letters are called for and also when capital letters are sufficient.
Single quotation marks don’t have many uses in American English. Learn when to use them and how to use double quotation marks and italics for emphasis.