Change one thing: rippling plot complications

A few summers ago, my hubby got into a low-speed collision that sent our car to the body shop. We are a one-car family, so this altered our routine significantly the few days we waited for rental car coverage to be approved. Even though we live a half mile from a transportation hub served by a dozen bus lines, we felt like our wings were clipped. Our usual five-minute drive to the pool suddenly turned into a 40-minute, two-bus trip, with a mile of walking thrown in. A quick cool-off became a...