Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117
If you catch a falling leaf on the first day of autumn you will not catch a cold all winter.
394
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
131
It's bad luck to leave a house through a different door than the one used to come into it.
143
It is bad luck to put new shoes on a bed (or a table) (comes from the tradition of dressing a corpse in new clothes and shoes and laying them out so everyone can give their respects) - (UK)
57
Collect seven or nine different flowers on midsummer eve and place them under your pillow and it is said that you will dream of your future spouse. (Sweden)
463
In Asia, the digit 4 never appears in any Nokia handset model number, because 4 is considered unlucky in many parts of Southeast/East Asia.
78
Placing keys on a table is considered unlucky. (Sweden)
3