There are things that you can do & can't do during the Chinese New Year.
Yes = Good Luck
1. Open all doors & windows = Bring the good luck of the New Year
2. When is night, switch on all the lights = Good luck to "scare away" ghosts & spirits of the misfortune
3. Sweets are eaten = "Sweet" year.
4. House completely clean from top to bottom before New Year's Day = Good luck for the coming year.
5. Wear new pair of slippers, bought before the New Year = Step on the people who gossip about you.
6. Bathe in pomelo leaves on New Year Eve = Bring good health for the rest of the New Year.
No = Bad Luck
1. Buy new shoes during New Year = Bad luck = the word "shoes" is a homophone for the word for "rough" in Cantonese.
2. Hair cut in the 1st lunar month = Curse to maternal uncles.
3. Wash hair = Washing away one's own luck.
4. Sweep floor = Forbidden on the 1st day = Sweep away good fortune & luck for the New Year.
5. Buy books = "Book" is a homonym to the word "lose".
6. Black & White clothes = Black symbolises bad luck & white symbolises traditional Chinese funeral colour.