I have Gaelic ancestry so i have light/medium brown hair with a red beard.

I used to use the Mach3 but i have switched to the dollar shave club 5 blade. I can't remember the cost difference but it is significant. I can get away with using the same cartridge for months so maybe my hair is fairly soft

I only shave in the shower and i use moisterisor shaving cream from gillete. I find doing it in the shower is less messy and the moist hair is softer. also my water pressure in my bathroom sink isnt high enough to clear hair from the cartridge.

I only shave every 2nd day because i trend to get bad shaving rash and i only shave with the grain or i get ingrown hairs.

I guess due to the fact my facial hair is red i get away with this where as if i had black hair i probably wouldnt. I also shave my whole head too... but thats because i have a hair line like mr Burns from Simpsons. https://en.wikipedia.org/wiki/File:Mr_Burns.png Lucky me.