Remember your first pocket knife? With that trusty new tool in your hand, you probably felt like you could take on the world. Until you dulled down that new blade, that is. But you just needed good sharpening equipment and a solid sharpening technique (of the two, the technique seems harder to come by). Whether you are sharpening with rods, a whet stone, or an actual stone from the creek, these five tricks can help you turn your dull knife into a sharp blade again, at home or in the field.