Posting in here for traffic!
Recently I have seen lots of Xmas decorations which say things like "Christmas at the Smiths".
Shouldn't it have an apostrophe after it because it is implying that you're going to the Smiths' house (and their house has more than one person living in it) for Xmas i.e. Christmas at the Smiths'
But what happens if the surname ends in S? Would it also be Christmas at the Andrews'?
I thought I was fairly good at knowing my apostrophes but seeing so many examples without one (or with it in the wrong place e.g. the Smith's"), I am starting to doubt myself!