I swear at it
in the garage I worked in as a kid, commer manista was the ONLY option.. yellow with beads, I think tuffanega is probably as good..
Have tried marg and salt a few times
Swarfega has always struck me as something to get rid of soil, grass, dust etc..
I do try and wear surgical gloves where possibly, annoying as they can be..
any thoughts? what do yo use..
John