@devriesj,
I just wrote out a long post describing the free trolley system but then discovered that it's been discontinued. That's a shame. I used it all the time when I was wandering around downtown in the summertime.
Depending on where she is in Lincoln Square, you could take either the red line or the brown line downtown. I know we plan on meeting downtown at least a couple times over the course of her visit. So far, ci is the only other person I know of from out of town who will be here over that weekend. O'Bill, Swimpy, and others are considering a trip in but haven't yet committed. It's all kinda fluid at this point but will firm up over the next week, or so.
So, so glad you're looking seriously at coming over, dev. I hope it works out for you.