Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
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An acorn at the window will keep lightning out
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An acorn should be carried to bring luck and ensure a long life.
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In some parts of England, rum is used to wash a baby's head for good luck.
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Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
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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.
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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.
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When you speak of bad luck, it is said that one should always knock on wood. Also knocking when speaking of good luck apparently helps with having good luck. This is an old Celtic tradition related to belief of wood spirits.
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