Have a bit of a hiatus, I pulled out my customed-handled Mach 3. I had thought that 21 shaves were enough for this longevity experiment, but after today's nice shave, I know it's good for at least one more shave.
Gillette Guard. I think I only got ten shaves out of it. Sometimes I get more. Barely worth $.25/cart, however, it's the time saving aspect that makes it worth it to me. If I'm running late or expecting guests, nothing shaves faster!
Gillette Sensor Excel w/ a NOS Sensor cartridge (12)
I may have taken this blade to the limit of what I'm comfortable with. Shave was close but there was mild alum sting. Don't want to push the cartridge to irritation just to get a couple more shaves out of it. A dozen shaves is good for the $1 each cost of these NOS cartridges.