Your passwords are a first line of defense against many internet ills, but few people actually treat them that way: Whether it\u2019s leaning on lazy Star Wars references or repeating across all of your accounts\u2014or both\u2014everyone is guilty of multiple password sins. But while they\u2019re an imperfect security solution to begin with, putting in your best effort will provide an immediate security boost. Don\u2019t think of the following tips as suggestions.