i forgot of one i heard somewhere. a guy told us we wouldn't get the right eskques if we didn't remove our RCA's before a meet and hang them upside down so the electrons could stop pooling up.
also remember reading a website about a recording studio ran out of the house where the guy only uses 8 track. unplugs everything in the house since the refridgerator causes noise in the electrical system. and records everything in the dark. He also sold some paste to rub on cds to make them sound better infinitely.