Free tax preparation is again being offered in conjunction with AARP at two sites in Edison. The service is available at the North Edison Library, 777 Grove Avenue, 732-548-3045, on Tuesdays and at the Edison Senior Center, 2963 Woodbridge Avenue, 732-248-7345. Call for an appointment or register in person. Bring last year’s return, a photo ID, and proof of social security and health benefits.