>stand across the street from a bank >time travel back in time 500 years >walk foward 50 feet >back2tehfutur >inside bank vault, take all money >travel back 500 years >walk to where your car would be parked >back2tehfutur 2 >drive the -blam!- home This can be applied to almost any situation where invisibility would be useful. Time travel is obviously the better choice; anyone who picked invisibility is a -blam!-in dope.