I have an EZE-Lap Sportsmans Hone that I carry daily, mainly because there is a spot in the "cordura" pouch that my Leatherman Wave sits in. The pouch also has a slot that houses a Mini-Mag 3W LED light (or any AA light). I don't used the sharpener all that often, but it is there if/when I need it. It gets used from time to time for things other than sharpening the knife too. I can not imagine going two years between shapenings...