It's bad luck to leave a house through a different door than the one used to come into it.
143
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
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
An acorn should be carried to bring luck and ensure a long life.
115
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 at the window will keep lightning out
93
Before traveling a person should, apparently, sit on their luggage. (Russian)
117