According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
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There are numerous sailors' superstitions, such as: it is considered bad luck for a ship to set sail on a Friday, to bring anything blue aboard, to stick a knife into the deck, to leave a hatch cover upside-down, to say "pig", or to eat walnuts aboard.
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Collect seven or nine different flowers on midsummer eve and place them under your pillow and it is said that you will dream of your future spouse. (Sweden)
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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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In some parts of England, rum is used to wash a baby's head for good luck.
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Placing a hat on the bed is, apparently, bad luck. (South Carolina)
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Before traveling a person should, apparently, sit on their luggage. (Russian)
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Placing keys on a table is considered unlucky. (Sweden)
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