When should you take the ACT/SAT? How often should you take it? Should you take both?

Many colleges and organizations recommend that students begin taking the ACT or SAT during their junior year of high school. But this doesn't mean that students have to wait until then. SAP suggests that students begin taking the test as early as possible; no later than sophomore year and at least once a year. There is no limit on how many times you can take the ACT or SAT. So if you would like