The knife I really use all the time goes in my sock when I am casually dressed, and I find endless uses for it. But then I work at home, and wear a kilt near full time now. If I am dressed up, then I use a nicer knife in my sock, and it gets used somewhat less, mostly because there is less occasion to do so in situations when I am dressed up. I feel naked without a knife. I would not consider going without one unless is was dictated by law somehow, and even then it would be iffy for me to abide by that. If I am going to be somewhere that a sgian dubh is really gonna be a problem, I will carry a folder somewhere else. But I am NEVER without a knife handy somewhere, of some kind. Sometimes more than one.