In one of the famous memory courses - Harry Lorraine - he says
   to remember things you have to make them sexy or violent. So if
   you want to never lose your glasses again, when you put them
   down, you imagine the glasses violently stabbing through the
   table, with blood coming out of the table in the spot you put
   them. it just takes a split second but it always works. Same
   thing with sexy. "