Capitalization

Old post, but since someone else resurrected it...

The one that I see more and more in society is using an apostrophe "s" at the end of a word to make it a plural. Usually, it it used in a contraction, like, "it's" or to show possession, like, "that's Tom's cool sentence."

It is rarely used in a word to make it plural, yet I see it being used more and more. I even see it in advertising. Really, if someone is confused and not sure when to use it, just leave the apostrophe out. You'll be correct more often than not.