Today, October 5, is the last day to register to vote in Illinois. You can register with a mail-in form if it's postmarked today, or (your best bet) register in person: at the Chicago Board of Elections for city residents and the Cook County Clerk's office for suburbans, both at 69 W. Washington; at any branch of the Chicago Public Library; at suburban Cook County courthouses; and via deputy registrars at outreach tables across the city today. See Alice's current Ask the Librarian column for further resources.