[TotusTuus]

Last time I used a disposable razor, I had to use it 3 times to get a good shave, and that makes my face bleed all day.

I'm the same way. Except about 12 or so years ago, I was involved with looking at a purschase for a hospital. It was a company that would "cold harden" surgical instruments. They would place the metal instrument in a container and slowly ramp the temperature down (and up), over and over to near absolute zero. What the process does is realign the atoms to near perfect "cubic" alignment, getting rid of molecular level slip planes.

I threw a cheap disposable double-edged Bic or Gillette in one of the runs.

Normally, with this type of razor, I could use another shave in the afternoon.

The razor gave a year's worth of excellent shaves.

[blanknoone]

I can't help but wonder...I had heard rumors of Gillette buying a patent on a 'forever razor' that never needed replacing. I am not sure if this is an urban myth (which it sounded like to me) or if someone patented the process you describe (or something similar) and Gillette did buy it. It could destroy their business.