The days of a chap on the street pedalling a wheel to resharpen the knives of the kitchen have disappeared for now, perhaps once New Labour have finished bankrupting UK some of the unemployed may find employment this way. The skill is to maintain the blade at approximately a 20 degree angle, in a constant fashion. It is a skill anyone could acquire with practice, and note to Mums everywhere is to allow sons to learn how to carve the sunday joint, and therefore to sharpen the knife to opbtain a clean cut. Inspection of the blade under a magnifying lens is a good way to discover what a blunt knife looks like, and what the effect is if one doesn't keep the blade at a constant 20 degree angle - I call it the chiltern hills effect. FOLLOW THE LINKS to the pictures and prices