HI: I wanted to chime in on this topic remembering my Chicago visits...
How soon is this trip? Metra has special schedules currently in effect...
www.metrarail.com
1-Why not leave your luggage checked in at ORD instead of having to lug it downtown
and back?
I would not bring my own luggage to CUS unless I was absolutely sure that I could check them in...
If you are referring to a light "daybag" carrying some necessary items that to me
is different - but the problem is some venues may not allow them to be brought in.
2-Something to consider that surprisingly only Tad mentioned: You may need to have
a valid Amtrak ticket or receipt to check luggage at the baggage counter or first class lounge. There were automatic self-service check lockers at CUS - but that was before 9/11.
3-The CTA O'Hare (Blue) Line rapid transit is the most economical and frequent way
to get to Downtown Chicago from ORD instead of the limited service offered by Metra's
North Central Line.
This alone can offer more flexibility to getting to and from ORD instead of the limited NCL service.
Keep us posted about your CHI trip...MACTRAXX
EXPRESS TRAIN TO NEW YORK PENN STATION-NO JAMAICA ON THIS TRAIN-PLEASE STAND CLEAR OF THE CLOSING TRAIN DOORS