Disposable razor blades are expensive and they usually need to be replaced after 4-5 shaves. Now, in the olden days men used special leather strips to sharpen those old-fashioned straight razors nowadays only barbers still seem to be using. These maintenance skills seem to have been lost over time leading to the current business model that's quite similar to the one for inkjet printers: The actual product is sold at a bargain price, sometimes even at a loss, while the consumables ... Read more