There is a serious shortage of blood around the holidays. Consider donating blood at the Randolph YMCA from 9 a.m. to 3 p.m. Start a healthy, new practice and better yet save one or two or three lives in the giving. Appointments preferred to increase staff levels (www.nybloodcenter.org; 800-933-2566) but walk-ins welcome. 2 Guest passes given donors. Call Ali at 973-229-8555 with any questions. Please bring ID and be hydrated before appointment.