If one walks underneath an open ladder it is said to bring bad luck. Sometimes it is said that this can be undone by immediately walking backwards back underneath the ladder.
105
An acorn at the window will keep lightning out
93
If you catch a falling leaf on the first day of autumn you will not catch a cold all winter.
394
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
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
Some motorcycle enthusiasts hang a biker's bell from a portion of their bike to protect themselves from evil road spirits.
64
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
131