As you can see, you've gotten a variety of answers, all valid. You have to decide what works for you. Initially (way, way back) I did not pre wash. Now I pre wash everything. I use color catchers, and I toss fabric in the dryer, then fold when it comes out. I don't iron, press or starch until I'm ready to use it. I do it because I am very sensitive to smells and chemicals, and found it almost impossible to work with unwashed fabric. You'll figure it out as you go!