I was dubious at first, but my friend J seems to have stumbled across the definitive evidence that the Simpsons is set in Springfield, Michigan. In the second season episode Three Men and a Comic Book, Bart turns in a soda bottle for recycling to Apu and declines to credit the cash towards a purchase, saying “No, not today, I need the dime”. And as you can see in this chart of Beverage Container Deposit Systems in the U.S., Michigan is the only state with 10 cent deposits. Q.E.D. Very nice work, J!
Glimpses of the websurfing habits of a computer science professor, obsessive crafter, occasional gamer, and all around geek