Magnets, bunk? Snake oil? Hardly, bunk and snake oil are fantastic products compared to improving your mileage or softening your water with magnets. Check historical references and find that for some past generations it was "ELECTRICITY" the wonder cure for arthritus, shortness of pants, ingrown toenails and just about everything else. For sale were: electric socks, corsets, jock straps and on and on. All touted to perform medical miracles.
As P.T. Barnum was reputed to say, "There is a sucker born every minute" A N D two to take him! Oh, did I leave out pyramids and crystals? Remember when pyramids were all the rage. People would erect pyramids over their beds. Small pyramids were sold to store your blade type razor because the edge would sharpen when stored in a pyramid etc. etc.
This stuff would be hilarious if good folks weren't separated from their money by these claimed miracles.
Patrick