The penny in the hand thing is an old superstition that seems silly, yet something I do every year at midnight on New Years.
The superstition goes that if you hold at least a penny in your hand at midnight on New Years, you will have money in your pocket through out the year.
I cant really say if it works or not, but since I started doing it, it seems that I am always able to scrounge up a bit of money when it is needed. Just because of this I will continue doing so every year. I would rather not take the chance of not doing it and not having money in the new year when it is needed the most.