I live 10 minutes from O'Hare, and ALWAYS drive north for about an hour to fly Milwaukee and Miwest Airlines (I presume that is your airline too, they have a 7:30 I always take).
I always stay at the Starwood Sheraton Four Points across the street. I leave my car there (I move it to in front of the adjacent bowling alley in the AM) and they drive me to the drop off at the airline. When I return, Icall them up, they pcik me up and drop back at the hotel. I get the car and head home. Nice.
Here is a link to their website.....
http://www.starwoodhotels.com/fourpoints/property/overview/index.html?propertyID=1131
If you are not already, sign up for a Starwood Club, it helps, and the points are great (Swan and Dolphin are Starwood also

) When making a reservation, check the drop down for any special rates,
AAA, etc. Or maybe hubby has rates there too.
When making the reservation, also ask for an upgrade in the detail box, if possible at checkin, if available. They are really great there.
If you are flying MA, concourse D. They have a Burger King with breakfast stuff before the security check, and down by the gates there is a quick food place too, eggs, bagels, etc.
If any questions, drop me a PM.
Again, it's great.