So the most common advice I'm seeing is "Don't store your carbon steel knife in it's leather sheath". I even received this advice from the maker of a high dollar english knife I recently purchased. I'm wondering if anybody here has actually experienced significant corrosion or other ill effects from doing so? I figure as long as I oil the blade and take it out for use at least once a week is it really gonna do any harm? I believe stainless steel is a fairly recent "invention" and it seems to me if leather wasn't safe for use there would have been a movement away from it's widespread use in the past? So where am I supposed to store my carbon knives if not in their leather sheaths?