Thanks, Mark! I was in the Sears Tower twice in March (both day and night) and will have the same schedule in April... The first time was with my special native Chicago guide. ;-)
Next three times with tours. I work part-time at a motorcoach company.
Did you know this? The Sears Tower has decks on both the 103rd (official) and 99th floor? 103 has all the exhibits. 99 must be for crowd runover. We had reservations at 1 p.m. on Saturday, March 23. There were huge crowds. But we got right by them with pre-ordered tickets and reservations. If I don't keel over dead with this horrendously sore throat I've had for a week, I should be there again this Sunday night, arriving 7-ish (following Blue Man Group at 3 and dining at Ed Debevics at 5:30) with what I hope are not too terrible a group of students. Two busloads full.