I used the Mach 3 for years and only got about 4 good shaves out of a blade. At the cost of the blades this got pretty expensive. I recently switched to a double edged razor. I get a week out of each blade now (7 shaves) plus I can do my head 3x a week. The blades are real cheap, you can get them for about $25 for a hundred. The shaves are better than the Mach 3 but you do have to take your time with them.
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