Mignon Fogarty–a.k.a. “Grammar Girl”–specializes in giving practical online grammar tips in a cheerful, sprightly, non-dogmatic way. I have found Mignon Fogarty’s tips very helpful. Even my coauthors like them. Here are her tips that I have used so far: 

“Like” versus “Such As”

“Like” versus “As”

“Which” versus “That”

Should it be “You” or “Your” with Gerunds?

My number one grammar pet peeve is the overuse of the reflexive pronouns “myself” and “yourself.” I hear this mistake in very high places. I cringe every time. Here is what Mignon,  Grammar Girl, has to say about it:

How to Use “Myself” and Other Reflexive Pronouns