In a representative democracy voting is the least you should do. To all the 'elections are meaningless', 'voting doesn't matter' folks... You're not really angry at elections, you're angry at the choices you're presented. $Billion$ are spent every election cycle, someone thinks elections matter.
VOTE! Vote 3rd party, write-in, or whatever. Just damn, show up on election day. The powers that be are afraid of an engaged public; no matter who they vote for. Apathy only serves the Oligarchs. Vote, then become active between elections.