Black cats and all that...
Today is Friday the 13th.
I am not a superstitious person for the most part, so I really don't mind Friday the 13th-s. I just don't want today to pass without making a note of it. I plan to mark today by learning how to pronounce paraskevidekatriaphobia which is a fear of Friday the 13th. Seems like a pretty solid use of my time.
Best of luck to you today!