I have the feeling that I quite often find four leaf clovers, and quite unexpected, too: on my way to the supermarket or library, on a walk, and sometimes - like today - when I step out of the house. Literally. And when people ask me how I found one, I don't really have an answer, because it was just there in front of me.
I don't think you need to find a four leaf clover to be lucky, but it gives me a placebo-kick if I do. And it's nice to get a placebo-kick every now and then ;)
So, what gives you the lucky-kick?