In business, as in life, luck can play a great part in one's fortunes. Many entrepreneurs tell of talking to the person in the next seat on a bus or train, thus meeting their biggest customer.
However, there is a strong case of belief that we make our own luck, according to Thomas Jefferson's saying: “the harder I work the luckier I get” :-)
Okay, i give you the four principles to ensure good luck by Dr. Richard Wiseman of the University of Hertfordshire:
1. Create opportunities, notice them and act on them.
2. When bad things happen, think about how worse they could have been and think of ways to tackle them.
3. Expect good luck and create a receptive frame of mind- that alone often make it happen.
4. Trust your feelings about people and situations.
i would also add here that, when bad things happen, analyze the cause of it, think of how they could have been avoided. Above all, learn from the situation and with luck, you would make sure it doesn't happen again :)