Stops to make on the way:

UW-Stout, best school ever!

Norske Nook in Osseo.. Just for some pie

Then.... seriously when you go... Do a mapquest from you guys to Delavan

then from Delavan to Chicago...

I dont know exactly about traffic.. and their are some lights...

But it should save you upwards of 20 dollars for the whole trip on tolls!