Some would-be writers think they can dash off an article without bothering to learn the basic rules of grammar. But just as any craftsperson spends time honing his skills to make the perfect piece of craft, so must a writer work hard to present an article that will be a pleasure to read and not shame him for its sloppy grammar and punctuation. True, some errors are typos, but doesnt that reflect a certain laziness on the authors part? An article should be closely examined for typos before it is sent off or uploaded.
Dont trust your spell checker. No automated spell-checker can alert you to every error. Whose and whos, lose and loose, quiet and quite, its and its are all legitimate words, so there will be no red line under them. Spell-checkers are not clever enough yet to tell which one you meant to use. And if the error is not due to a typo, it means you need to keep a dictionary on hand to check anything you are uncertain of.
Remember that when a word ends in s it means there is a letter missing. Its means it is. If you are unsure which one you should be using, try saying the sentence both ways.
For instance
Its a good day today/ It is a good...