Early voting was a particular focus. Find out more about whether early voting is allowed in your district here. Then, if you have any free time on election day, volunteer with your local Obama office to help drive voters who need a ride to the polls.
Keep up the good energy...the polls look very stable (for whatever that's worth!). This graph of an average of polls comes from FiveThirtyEight.com:
But ignore the polls. The only poll that matters is the one that takes place on November 4th.