The more people show, the better Kerry does. Low turnout is a gift to the Republicans. So get in line.
I waited in line 40 minutes to get a chicken sandwich at Ozzfest this summer, and it didn't have lettuce, tomato, any condiments, or anything. It was a dry chicken cutlet on a dry roll. No matter how long I have to wait in line at the polling place tonight (and I'm surprised to find out there's a massive crowd - my neighborhood is heavily slanted toward new immigrants and noncitizens, but the street is damn close to blocked with cars and pedestrians), it'll be worth at least as much as that sandwich was.
In case you still need convincing, read this. It's the best endorsement I've read all year.