A spectacular primer on iPass, via 37Signals, discovered during a trip to a rest stop along the Jane Addams Tollway.
The rest stop usually has a booth where you can buy a iPass so you don’t need to stop and pay tolls all the time. During the day the booth is manned by someone to help answer any questions you have.
It appears that a lot of the same questions are asked over and over. Enough, in fact, that the dude who answers them is sick of giving the same answer. That answer is “Yes”.