Oh G-d, the apostrophe thing .
Somewhere, somehow, people have it in their mind that you use an apostrophe whenever there is an "s" at the end of a word. Noooooo! Plain old plural words don't use an apostrophe.
People, an apostrophe is used to show possession! That means when something belongs to something or someone else.
The only other time is when you have a contraction.
I admit, I get roiled when I see this misuse here on TE.