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)
463
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
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
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
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.
208
Placing keys on a table is considered unlucky. (Sweden)
3
An acorn should be carried to bring luck and ensure a long life.
115
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
131