Is it true that rubbing a disposable razor against jeans will make it last longer? There's a post on reddit saying that it does.

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carpediem · 61-69, M

Didn't realize disposable razors caused so much drama. I Thought were DISPOSABLE

4meAndyou · F

@carpediem I have used the same daisy shaver for 5 years now. They stay sharp enough for my armpits, but I would not want to do my face with it if I were a guy.