Ignorance and its reliable follower Fear are the only legs the McCain campaign has left to stand on. So if Obama can break down the ignorance tonight, the fear will subside while people discuss what they learned with family & friends before they vote on Tuesday. And this Rovian McCain campaign will fall flat on its face.

But since this will effectively be his only shot at the large portion of the American public who haven't shown up at one of his mega-rallies, or watched the debates, Obama better take more than a little guidance from Ronald Reagan's stunningly effective speech on the economy in 1981.

Succinct points, made graphically and with direct, unembellished prose, which were easy to understand. Realworld comparisons to things that viewers could relate to instantly.  And charts, don't forget the charts.

Leave the soaring rhetoric for the very end. Because when these people who, after months of campaigning, are still undecided vote, they only want to be shown what you are going to do for them and their wallets - not the country.