CityRoom has a nice story about how some city school buses, empty during the day with kids in school, are being used to ferry senior citizens to supermarkets: "The elderly often have a difficult time finding fresh produce and healthful foods because of their limited mobility." The program also doesn't cost anything, since the school buses and drivers are there anyway; the city's Department of Aging said, "The fuel costs are in their contract, so there is no increase or decrease whether we used the buses or not."