Regardless of how much we write, there are always those little things that we struggle with...Do I use a colon or a semicolon? Where does the apostrophe go? Do I use "that" or "which"? There are sources out there to help with grammar usage. A good one is Strunk & White's The Elements of Style. The 4th edition of the Oliver Strunk and E.B. White classic work is now available full-text online.
