Driver's License/Commercial Driver's License/State ID Card site informs as to what documentation is required for each card.
Change of Address and/or Name Change link which discusses how to make an address change and which of these can be made on-line. If it is a name change or a new Driver's license needs to be printed, it provides links to Drivers Facilities.
Secretary of State Facility Finder allows you to search for facilities in Illinois
License Plates Renewal site with designated PIN and registration i.d. allows you to renew your license plate
Purchase Vanity and Personalized License Plates
Duplicate / Corrected Driver's License / Commercial Driver's License provides information concerning replacing, correcting a driver's license or obtaining a commercial driver's license.