Will you do anything different today --- being Friday the 13th?
It is also a reason for the fear of Friday the 13th, called paraskevidekatriaphobia (from Greek Παρασκευή (Paraskevi), meaning 'Friday') or friggatriskaidekaphobia (after Frigg, the Norse goddess after whom Friday is named in English).
I had not noticed we had a Friday the 13th this month, and had a quick chuckle. Will anyone do anything different because of this day? Not being too superstitious, but am glad I don't have a closing today!