Black is black
I have found the vinegar dye-fixing trick to work well when I dye things, not sure how useful it would be on newly purchased things. A more useful trick for me is to re-dye black things in my wash machine (with vinegar, a cup a load) if they fade on me. Follow the directions on the dye package.
Of course this is only for things that can survive machine wash.
Edited by Sylph - 2/12/15 at 6:42am