The strategy I use for generating 4 to 6 digit passwords (for pin keys) is to imagine drawing a shape over a keypad. For example an N shape would be 7193, a T w

The strategy I use for generating 4 to 6 digit passwords (for pin keys) is to imagine drawing a shape over a keypad. For example an N shape would be 7193, a T would be 1328 and so on. Edit: I'd be interested to see what others do!