It's bad luck to leave a house through a different door than the one used to come into it.
143
Placing a hat on the bed is, apparently, bad luck. (South Carolina)
9
Some motorcycle enthusiasts hang a biker's bell from a portion of their bike to protect themselves from evil road spirits.
64
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
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
An acorn should be carried to bring luck and ensure a long life.
115
Placing keys on a table is considered unlucky. (Sweden)
3
In some parts of England, rum is used to wash a baby's head for good luck.
71