<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by ScottC:
Weekend of the august 23/24 or september 6/7 are the first that come to mind...</font>
One problem. The Cubs are not in town on either of those weekends.
There is a homestand the weekend before, however (August 15-16-17), against a non-high-profile opponent (the Dodgers).
That's about the time of year tickets become easy to get, too, because a lot of people skip town for vacation, and by then the Cubbies should be about 35 games back.