Some humble suggestions for use as talking points (and perhaps campaign focus) going forward:

1. Lay out and repeat how Sen. Obama is the strongest candidate against Sen. McCain - don't just attack McCain's polices (although that too is good), but emphasize how Sen. Obama can redraw the traditional general election map, has brought new voters in and energized even more, the thirst for real change in the country, etc.
2. Put a little more populism into the speeches - I'm not saying go all the way to Al Gore circa 2000 campaign language (which I personally agree with, but which isn't the point), but I think more agressive discussions of how "change" means getting rid of the special interests representing big oil companies, coal companies, etc. who are making record profits while Americans (and Hoosiers and Tar Heels in particular) struggle to make ends meet; I guess the take-away point here: make it more personal
3. Take the initiative and challenge Sen. Clinton to another debate. I'm pretty sure voters don't care whether front-runners are supposed to typically decline debate invitations, this is about the future of the country, and voters want to see someone animated and passionate about the best policies to move the country forward.  If the moderators (assuming moderators are even necessary at this point... Lincoln v. Douglas anyone?) insist on random, asinine questions, be relentless in giving short answers to those questions and turning the focus onto an actual issue important to the country.  debate her once a week if necessary, whatever it takes to lay out the case...