The all-too-common problem with red wine and Concord grape juice is the tendency to spill and stain. Here is the best solution for removing a red wine stain:
Mix nearly equal parts of Dawn, Woolite, or any other liquid soap, with household-strength hydrogen peroxide. Be generous with the peroxide.
From “Recovering From a Spill,” by Leef Smith, The Washington Post, July 15, 2004.