The superstitious symbolism of a black cat crossing one's path is dependent upon culture: some cultures consider this a sign of impending bad luck, while some cultures consider this a sign of impending good luck.
75
A single magpie is considered a sign of bad luck. A Guide to the Scientific Knowledge of Things Familiar recites an old proverb concerning the incidence of bad weather when magpies forage alone and a possible scientific explanation for this.
49
Some motorcycle enthusiasts hang a biker's bell from a portion of their bike to protect themselves from evil road spirits.
64
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
Before traveling a person should, apparently, sit on their luggage. (Russian)
117
An acorn should be carried to bring luck and ensure a long life.
115
It's bad luck to leave a house through a different door than the one used to come into it.
143
If you catch a falling leaf on the first day of autumn you will not catch a cold all winter.
394