Amazing to me how I'm not alone with this:
   My go-to is some no-rinse shampoo they make for invalids and
   astronauts. It's usually by the old ppl stuff in the pharmacies.
   They're the same as us; just older so the same products work
   just fine.

   Oh, foot powder. Brush it through as many times as necessary
   until the white goes away.

   Pulls the oil out on the little talc or corn-starch bits. Works
   perfectly; just try not to breath the stuff in. I usually put it
   on my hands and pat it on, then brush brush brush brush brush
   brush.

   I don't do it for any principles... I just have hyper-sensitive
   nerves that react strangely to regular showering/bathing, so I
   use alternative methods.