Originally Posted by Caseyfan21
Depending on how far you're willing to walk and how often you need to access your car, 500 W. Monroe garage offers all day Saturday/Sunday parking for $6/day. I haven't found anywhere else to beat it. Especially during the summer it's right next to Union Station and the water taxi that will take you over to Michigan for a few bucks per person. Nice trip down the river and great for out of towners to see a little of the city without paying $30-40 for a city river cruise.
Also, the Prudential Plaza is 2-3 blocks from that Hyatt and offers weekend parking for $12/night (last time I parked there was last winter so it may have gone up). Sure beats that $50/night at the Hyatt.
And if you need parking in the River North area check out this garage - http://www.greenwayselfpark.com/buyonline/
. Cheap advance purchase parking for a night out in that area.
Thanks for the tip. I ended up dropping my wife off at the hotel and parked the car at Navy Pier for the duration of the trip. If memory serves it was $20ish per day, which which seemed like a bargain compared to $50 per day at the Hyatt but nowhere near as good as the places you suggested.