There are great fireworks on the 180 degree view of my window right now. According to the Chinese tradition, the 5th of the New Year is the day the God of Fortune will arrive at your home. People need to fire great fireworks to welcome him to arrive.
I paid attention to this tradition only after I am in Shanghai, since I noticed the fireworks in Shanghai on the night of the 4th of the New Year is even more intensive than the New Year Eve!
This special night is also the best time for many housewives to start to review the balance sheet, cash flow or whatever financial metrics they have for the family.