Get strategic score voting. We do not need this two-party insanity.
I keep pointing out that strategic score ("simple score") voting Can Be Completely Described in one short simple sentence: Strategically bid no vote at all (ignore them as if the did not exist), or strategically bid from five (5) to ten (10) votes to any number of candidates you wish (up to some reasonable limit, say 20 candidates), and then simply add all the votes up.
Of course, with no machines. NOTHING ELSE EVEN BEGINS TO WORK!
That way, you could (say, in a general election, presuming you are are leftist) write in Cynthia McKinney and bid her 10 votes, and bid Bernard Sanders 8 or 9 votes as a hedge (depending on your choice of strategy). This would completely disrupt the alleged two-party system. The oppressive duopolists can always use strategy, so strategy must be available to the common voters if they are to win.
Writing in Cynthia McKinney might be a great strategy, if you had strategic score.