What Luck! Or what is Luck?

Happy St. Patrick's day and hopefully you're enjoying some time at home. We'll soon get back to work, digitally (or on paper) soon. It's Okay to be Smart took this day 2 years ago to look at luck.

For more on luck (ie self fulfilling prophecies) and how it does and does not effect you check out the SciShow's episode.

So do you have lucky charms that help you?