This affects everyone, whether they know it or not.You want to get the largest Social Security benefit you can, but the benefit formula can seem confusing if you don't have a finance background. Fortunately, you don't need to understand it in order to make smart choices about your checks.There are only a few key things you need to know. First, the more you pay in Social Security benefit taxes throughout your career, the larger your future retirement benefit will likely be. Second, your full retirement age ( ...