Find your precint! Don't get lost! Don't miss the election!
To find your Precint: http://www.comelec.gov.ph/precinctfinder/precinctfinder.aspx
Once you're done finding your Precint number and location, go to Google's Precint finder and help others to map their precint: http://www.findyourprecinct.ph/
Warning: The COMELEC website above will be crucially slow so be patient and stay on the page, it will load later (say, 5 minutes after if you have DSL/Broadband)