See this is where it gets interesting. Others have told me they replace their blades as far out as the beginning of every month and still notice very little degradation in sharpness.

I had a friend who married a fellow who worked at Gillette in Boston. I asked him what the average life of a razor (would have been the 2 bladers at that time) was supposed to be and he skirted well around the question and would not give any indication whatsoever.

With great power comes Awesome irresponsibility.