Is it safe to come back?
>looking around<
OK. Seems like the worst of it is over.
I know that everyone is looking for other activities (jazz clubs, museums, sightseeing, etc.). Most of these don't require any advanced planning -- it's not like the Art Institute, for instance, will be sold out if you don't get your tickets in advance. There are two activities that I can think of, however, that might require some foresight and preparation: Second City and baseball.
Second City (for the two or three of you who don't know) is an improvisational/sketch comedy revue that has been an institution in Chicago for over forty years. I've found that it is fairly easy to get tickets for weeknight shows, but weekends need to be booked in advance. If a bunch of A2Kers are interested in going, we could arrange for a group outing.
Lots of out-of-towners, when they come to Chicago, want most to see the Cubs play in Wrigley Field. Well, it ain't gonna' happen, folks. The Cubs
leave Chicago on May 3 for a west coast road trip and don't return until May 12. So unless you plan on an extended visit, the best you can do is look at Wrigley Field from the outside. But the great thing about having two major league teams is that, when one is out of town, the other is at home. And the other team just happens to be the defending world champion White Sox, who
have a home stand from May 3 to May 11. In the past, it was pretty easy getting tickets to White Sox games. I don't expect that to be the case this year. But it should still be possible to get tickets, especially for the weekday games, if you order in advance.
Just some thoughts. There might be other events that you can think of that will require some forethought and preparation (May is actually kinda' quiet around here -- winter events are over and summer events haven't begun yet).