Those brushes are amazing even using 'regular' 2/3/4/6 blade razors. Same goes for shave soap.
I've got a double-edged Merkur and a straight Classic Samurai razor: both are great. Blade-wise, I've only tried Derby Extras & Sharks, but both are great.
There is a market to find and distribute varieties of double/single-edge razor blades, not that anyone's tapping it. Wouldn't it be nice to get a couple blades sent in advance to every hotel you fly to? Or just to get a few different blades for $1 or $2/mo? (what are Feathers like?) You don't always need or want the 100-pack (though it usually is just $6 or $7).
I've got a double-edged Merkur and a straight Classic Samurai razor: both are great. Blade-wise, I've only tried Derby Extras & Sharks, but both are great.
There is a market to find and distribute varieties of double/single-edge razor blades, not that anyone's tapping it. Wouldn't it be nice to get a couple blades sent in advance to every hotel you fly to? Or just to get a few different blades for $1 or $2/mo? (what are Feathers like?) You don't always need or want the 100-pack (though it usually is just $6 or $7).