Gurnee mills is located right across the street from Six Flags Great America ~ perfect for families with older children! Drop the kids off at the park for the day, leave your husband at the Bass Pro Shop Outdoor World (which is across the street, in an adjacent mall) and then go shopping!
Ok, it’s a humungous mall, with hundreds of shops, mostly discount, outlet, and some specialty shops, 2 food courts, an ice rink, a 20 screen theater, and plenty more!! Check out the store directory.
FYI, The mall is designed in a "straight" walk rather than a "track or looping" fashion, so walk down one side to the end and make your return trip on the other. Otherwise, it’s a very long and boring walk back.