For just $8, Dr. Scholl’s exfoliating file gently buffs away rough and callused skin. Waterproof and rustproof, the foot file is a safer alternative than callus shavers like metal rasps ...

Part 1 of the TED Radio Hour episode Incognito. Dr. Scholl's foot powder, tin foil, dead rats—former CIA Chief of Disguise Jonna Mendez used them all to conceal agents and secret messages.