Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117
There are numerous sailors' superstitions, such as: it is considered bad luck for a ship to set sail on a Friday, to bring anything blue aboard, to stick a knife into the deck, to leave a hatch cover upside-down, to say "pig", or to eat walnuts aboard.
70
If you catch a falling leaf on the first day of autumn you will not catch a cold all winter.
394
It's bad luck to leave a house through a different door than the one used to come into it.
143
An acorn should be carried to bring luck and ensure a long life.
115
Opening an umbrella indoors is said to result in 21 days of bad luck. Some traditions hold that it is only bad luck if the umbrella is placed over the head of someone while indoors.
75
According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
24
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