sounds like your best bet, if it's allowed in your state. According to today's Wall Street Journal, 29 states now freely allow early voting without having to give an excuse to a bureaucrat, as you had to in many places to get an absentee ballot years ago. For example, voting starts in Iowa NEXT WEEK, for 40 days right up through November 2nd.
I don't know about other voting info sites, but a Republican PAC has a truly well-done page with really extensive voting info by zipcode, at
http://www.ezvote.org. All you have to do is enter your zipcode to get the most extensive voting info I've ever seen, including specific information about early voting in your neighborhood.
You don't have to register to use the zipcode page for voter info. But if you want to go deeper into the site, and use business PAC databases on issues and candidates, be sure to give a phony address phone number and name. Otherwise you may get dozens of phone calls from the religious right.