wash the fabrics separately---in the washer- with detergent- toss in a couple (color-catchers) they are in the laundry section of the store- in a box like bounce sheets) when there is no color on the color catchers there is no (bleeding) going on
tumble dry in the dryer- if you take the fabric out of the dryer when it is still (barely damp) you can iron it without starch- you can use starch if you want but generally a good spritz of water with a spray bottle, or a blast of steam is all you need to remove wrinkles- if the fabric is (flimsy/thin/slippery) starch will make it crisp- easier to cut - some people use starch all the time- others very seldom.