Things to do in Chicago between 12:30 AM and 6:00 AM Monday morning:
Take a cab from Midway to your home. If you share the cab with my friend Starce you can discuss marketing or computers or Publishing Workflow Management Systems on the way.
Check your stack of mail to see if your girlfriend's birthday present (already late) has arrived.
Kiss your sleeping girlfriend.
Take dirty clothes out of your bag, put clean clothes in.
Sleep -- this is very popular in Chicago between these hours. Many people do nothing else on Monday mornings.
Wake up -- this is not very popular in Chicago. Or anywhere.
Kiss your sleeping girlfriend good-bye.
Take a cab from your home to O'Hare. If you ride in the cab by yourself you can fiddle with your phone so you don't fall asleep in the cab.
If you pass up the McDonald's between gates K & H, be warned that the Cinnabon down by K-15 is not open at 5 AM.