Cartridge razors I used to use cartridge razors like bics. Due to the fact my mother and sister used them to shave there backs. I’m not actually sure about that fact. I’m sure they used them though. I would shave once a week to get my teen peach fuzz off my chin. As i became thicker bearded i used Mach 3 blades. I heard a story about Mach 3. Where some old fellow i met said he got 6 months use out of a single cartridge. Then after that he started sharpening them. Thats right you can sharpen cartridge blades. You just rub them in the obvious direction up a belt or stone. I on moving into a new ..read more