I was speaking to a friend of mine about shaving and he was saying oh yeah I've used the same razor the whole time I've been shaving, about 5 years. So I said well yeah, you don't throw the handles out, just replace the blades. (he uses a cartridge) and he said ... um.. no.. I mean the blade part. How the hell is that even possible!? for the record he never looks like he shaved with anything other then a butter knife but wouldn't that start to hurt and get rusty and gross after a while?