A day in the life of a grammar fanatic...

The other day I saw a sign at my local grocery store.  It said, "Try Our New Sub's".  I cringed and wished I had some paper towel to wipe away the green dry erase marker's carnage.  Apostrophe!  "Subs", in this context, does not need an apostrophe!

I mentioned this faux pas to the girl behind the counter and she shrugged, as if this cataclysmic event wouldn't change the very fibre of our collective existence.  

We, the readers and writers of this world must embark on our daily quest to edit terrible grammar, wherever we find it.  And, oh, it's just everywhere, isn't it?

Please share some of your own horror stories...I'd love to shudder alongside of you all.