Money & Savings | VolunteeringThe following is a guest post by Jim Young. Want a rewarding volunteer experience in 2013? If you’re good with numbers, people or computers — or better yet, all three — AARP Foundation has opportunities right up your alley. During the 2012 tax season, AARP Foundation Tax-Aide’s 35,000 volunteers served 2.6 million taxpayers across the country. Most of the volunteers prepare federal tax returns. These folks come from every imaginable background. Some have accounting and financial experience, but that’s not …