Congratulations, trip 10 in 10 days. Anticipation is part of the fun. Are you flying out of MKE or ORD for this trip? Seems AA / US Air merger really is making us fly out of ORD these days, unless you want an overnight flight. You are sure to have a great time, enjoy.
ORD. It's almost always cheaper than MKE and you usually stop there to change planes. We actually live between them. 45 min to MKE and just over an hour to ORD.