The battle for the Senate has been a cliffhanger for months. Races in at least ten states that will decide the balance of power have remained too close to call, despite corporate pundits' haste to forecast a GOP victory. Now, on the eve of Election Day, it's tempting to throw up your hands, sit back and wait for the returns to come in.

That's exactly what Republicans are hoping we'll do. Give up hope and do nothing.

What's the alternative?

How can progressives channel our outrage over the possibility of the GOP ruling both houses of Congress for the remaining two years of Obama's presidency? Pushing whatever legislation they want to further their far-right agenda and keep our country from moving forward? Holding the power to control the nation's courts by blocking judicial nominations, including seats on the Supreme Court?

If you can, take tomorrow off from work. Call your local Democratic campaign office, and show up to volunteer. Don't fool yourself into thinking one more volunteer won't make a difference. It will, and they need us. Bring your cell phone. Whether it's making phone calls to voters or going out to knock on doors and flush folks out who haven't voted yet, your efforts will pay off.

If your state is true blue or red and doesn't have a close Senate or House race, it's even easier to make a difference. From the comfort of your own home, or wherever you happen to be, the number one way you can help is to call voters in other states.

Through its Voters Rising campaign, MoveOn.org has helped volunteers around the country make over five million calls to progressive voters in targeted states so far, voters who are on the fence about voting in the midterms. You can help reach even more. There are still calling shifts available that you can sign up for right now.

Calling voters is empowering for both you and the people you'll talk with. Make a little time to do it. You'll speak with good-hearted citizens in other states who share your views and may have just been waiting for the extra push you'll give them in order to vote this year.

The reality is that there's never a better time than the few days immediately before an election to call voters and remind them to go to the polls. In 2004, I worked to elect John Kerry in North Carolina. Our office was overrun with volunteers in the campaign's closing days, spread out in every room and hallway with cell phones and call sheets. But there's always more phone calls to be made than there are volunteers available to make them.

With control of the Senate hanging in the balance, the stakes are high in 2014. Spend some time between now and tomorrow night dialing for voters, and you'll go to bed on Tuesday knowing you helped make a difference in this election.

Erik Ose is a veteran of Democratic campaigns in North Carolina and blogs at The Latest Outrage.