I lived car-free in Chicago for 7 years. I now live in an inner-ring suburb (Oak Park), car-light (my wife and I share a car that I drive as little as possible). If we define 15 minutes as ¾ mile walking distance, I have within that range, two supermarkets, a library, health clubs, coffee shops, two drug stores, dry cleaners, banks, doctors, dentists, schools, daycare and a number of restaurants not to mention a stop on the “L” and at least half a dozen bus routes within my 15-minute zone. If I didn’t prefer Trader Joe’s to a mainstream super, I wouldn’t drive to go grocery shopping (and TJs is just over a mile away). If I expand my range a bit more, I add in even more of all the above plus a book store and movie theater.