A newb question about the double-edged aspect of our double-edge safety razors...
The general consensus around here seems to be that you can get 3-4 shaves "per blade". Is that per edge? Because I would say my beard is coarse, but I got 3 good shaves from just one edge of a Merkur blade.
Should I be using one edge at a time until it wears out? Or should I go back and forth between edges?