The way to see Chicago I

Don't go up the Sears tower, the queues are long, and the queues going down are longer and it costs more.

Take the Hancock Tower. You can be at the top 2 minutes after going in.

If you want to go free, go to the café, buy a (relatively) expensive coffee.

The best view is from the ladies restroom, which has an all glass wall (the only privacy problem would be an enthusiastic helicopter pilot!) So I'm told