Taking the SAT If I Already Have a 36 ACT?

I took the ACT with Writing, and I got a 36 composite score. However, I've heard that some schools prefer the SAT over the ACT. Should I take the SAT as well?

No need! A 36 ACT score is amazing, and any college will be more than impressed with your performance. They won't need an SAT score to corroborate it.