When to break up with your friend?

ivillage-300x225I remember the Girl Scout Brownie song, “Make new friends, but keep the old. One is silver and the other gold.” But how do you know when a friendship has run its course and may be doing more harm than good? iVillage addressed this question in their article, “20 People You Need Out of Your Life.” They asked our very own Jessica Cashman for some practical advice on when that friendship has tarnished.