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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It's bad luck to leave a house through a different door than the one used to come into it.
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Placing a hat on the bed is, apparently, bad luck. (South Carolina)
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An acorn should be carried to bring luck and ensure a long life.
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An acorn at the window will keep lightning out
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Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
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Before traveling a person should, apparently, sit on their luggage. (Russian)
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Amber beads, worn as a necklace, can protect against illness or cure colds.
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