An acorn should be carried to bring luck and ensure a long life.
115
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
Placing keys on a table is considered unlucky. (Sweden)
3
Before traveling a person should, apparently, sit on their luggage. (Russian)
117
It is bad luck to put new shoes on a bed (or a table) (comes from the tradition of dressing a corpse in new clothes and shoes and laying them out so everyone can give their respects) - (UK)
57
In some parts of England, rum is used to wash a baby's head for good luck.
71
Many believe that if all of the candles on a birthday cake are blown out with one breath, while making a silent wish, the wish will come true.
298
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