Did you remember that the character “King Friday” on Mr. Rogers’ Neighborhood celebrated his birthday every Friday the 13th? Sounds like a good idea to me.
So: break a mirror, pet a black cat, spill some salt, walk under a ladder, exit a movie theater by the same door you entered, drink your first pint without offering a toast. They’re all okay today — by some convoluted logic understood only by me, and perhaps the Knights Templar.