It's bad luck to leave a house through a different door than the one used to come into it.
143
An acorn should be carried to bring luck and ensure a long life.
115
Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
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
If you catch a falling leaf on the first day of autumn you will not catch a cold all winter.
394
At times, a horseshoe may be found above doorways. When positioned like a regular 'U' it supposedly collects luck. However, when it is positioned like an upside-down 'U' the luck supposedly drains.
78
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
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.
75