This might be a good time to bring up the rules of the forest preserves. Most stuff is common sense. The big thing is glass containers are not allowed. If you are bringing beer cans are a good idea. Solo cups are good as well. Just don't need "The Man" coming down on us.
http://fpdcc.com/preserves-and-trail...d-regulations/
Also BRING WATER for drinking, cooking and cleaning. These woods are located on (or near) a nuclear waste dump from the Manhattan Project. They disconnected the well water pumps years ago as a precaution.
There is a Speedway gas station food mart right near the entrance of the woods if anyone needs any last minute stuff like ice or water or beer or soda etc.