There is a new off-site parking facility at Ohare - Blue Sky Parking. I used them for the first time last week and was very pleased. I have previously used Park and Jet which is just a block away. Their lot is always so full. Last time I couldn't even find a space so they said to just leave the car anywhere, and then the shuttle comes through the crowded lot with about an inch clearance. It was very scary. So this time I tried the new Blue Sky. Here you pull into a large barn so you can drop off your car and load into the waiting shuttle inside. They park the car for you for no extra charge. You can pay a little extra to park inside. Their rates are a bit lower plus they have a good coupon on their web site which they took with no problems or questions. On return, I called after picking up my bags and the shuttle showed up after a reasonable wait. When I got back to the garage, they had my car warmed up and waiting inside. I will definitely use Blue Sky again.