I have Color Catchers (looks like a stiff dryer sheet) and use when I question bleeding. Works great. If the Quilt of Valor has a lot of red, I throw in two. Purchased alongside detergents at the local grocery shop.
Peckish mentioned the scent of Tide. I make my own detergent and have used it for several years. It works well, is cheap and you can add the essential oil scent you like. I also wash w/cold water. I will look up the link and add it here when I find it.
http://www.foodiewithfamily.com/2010...-laundry-soap/