Pocket clips or belt sheath for me for my Buck 110's and 112's that came with them, and the clips must be able to be reversed for lefty carry. Really dislike the feel of a pocket knife loose in my pocket. With a clip or belt sheath I know where the knife is, and just as importantly, it's orientation when I reach for it. The only knives I might carry without a sheath or clip would be a SAK or peanut, IF I was wearing jeans with the 5th/watch pocket. But it would be in addition to my primary knife. Just what works for me.