If you are Cantonese and your parents
are superstitious, they might tell you not to buy shoes during the
Chinese New Year period.
Shoe is 'hai' in Cantonese. Rough (not
smooth) is also hai in Cantonese. So, do you want to have a rough
life for the whole year? Furthermore, hai is also a sighing sound.
For example, if you ask someone something and he sighed 'hai' before
answering, it means something unfortunate or sad has happened.
On the other hand, you can buy a lot of
trousers in the CNY period because trousers is 'fu' in Cantonese
which also means wealth.