I've read varied recommendations about extending the life of a razor blade. Some say should stick the blade in oil when not in use, others say in alcohol, others say in a bowl of rice or silica gel.
I thought this community would be able to settle this:
What is the best (scientifically proven) manner to prevent corrosion of a cartridge razor blade?
I believe my Gillette Mach3 razor blades are stainless steel.
[The reason for this question is that cartridge blades are not cheap. Some may suggest going to a DE safety razor. I have tried it. It took me 2x as long to shave, so I returned to the cartridges.]