A couple of ideas for the dwindling days of summer vacation – these have been big sellers on Groupon:
$13 for One-Hour Bowling Outing for Four with Shoe Rental ($39 Value) at Fox Bowl in Wheaton.

Tall Ships Chicago 2013 at Navy Pier on August 8–11 (Up to 56% Off). Three Options Available.

WNBA Game for One or Two on August 2, 6, 11, 18, or 23 with tickets starting at $15 (Up to 74% off). That’s Chicago Sky.