I just bought a nice black cotton shirt from Club Monaco that can be dressed down and up. I intend to wear it a lot to justify the px. Short of having it dry-cleaned everytime I use it, is there another way I can keep it from fading when I wash it? I remember an old Oprah episode that letting it sit in a solution of vinegar and water makes the color more vivid and less liable to fade. True? Any ideas would be so appreciated.