Planning to fund your retirement via CL sales, eh?
Never thought of looking at Craigslist. Only things I see are scooters and cell phones, though someone is offering a straight razor sharpening service with 4k and 8k stones. Ever hear of Sharpening Shack in San Diego?
One person is selling "ASR industrial razor blades, 100-ct, single edge (unused) $8". The only ASR I know of is for safety razors; I sent an e-mail and will see what kind of response I get.