It may be risky in terms of the "buying the vote" criticism but who cares. I say, publicize early and often (billboards by public transportation would reach the most of the needy audience), all of the help Obama volunteers can give voters on election day. From childcare, to rides, to legal representation for employees who's employers refuse to let them leave to vote.

I know that in GA there is a big push within the Obama campaign for voter registration, and I'm assuming that this is the case most places in America. Walmart's are the PERFECT place to do this-- there is a steady flow of traffic, lots of it is low income and/or low education, and they're coming out frustrated with how much money they just spent.

If you take the 88 counties in Ohio. Divide each county into 4 quadrants, assign 20 volunteers to focus on nothing but their quadrant - including recruiting more volunteers and GOTV efforts. You would only need 7,040 Obama supporters. In the great big state of Ohio there ALOT more supporters than that for sure.