Unless someone can help.
We have carpet that's less than a week old. As we were moving some stuff around, a v-brake pad tumbled out of some stuff and came to rest on the carpet. When I picked up the brake pad, my wife started swearing at me.
The brake pad, having been previously used, left a bit of brake dust on the carpet. No grease, just some black dusty residue. I tried to carefully blot it up out of the new carpet, but there's still a smudge there.
Basically, I need to figure out how to clean this up.