Maybe a routine or process you go through which brings you luck?
Do you avoid walking under scaffolding, ladders, and avoid walking over three drains?
I think when it comes to luck it's a personal thing. What works for one person won't work for another, and it's all to do on your experience and beliefs.
I think it can also be down to chance, and can be psychological, a coincidence.
The guys at Paddy Power have put together an infographic with some interesting facts based around luck and chance.
What do you believe?