Having navigated many of the dusty and musty aisles of goodwills and thrift shops, there's really no competing with the West Coast used clothing store chain,Crossroads Trading Co.,which provides name brand, second-hand goods on the cheap and eliminates perusing through piles of holes, rips, and questionable stains.
Selling your gently used threads is also an option and pretty straight forward. Here I've provided a link to the site where stylist,blogger and long time CR customer goes into detail about selling your clothes for cash or store credit.
http://crossroadstrading.com/buy-sell-trade/tips-for-selling/
Last weekend I visited the Berkeley location off Shattuck, unloaded a moving box worth of Fall/Winter clothing and walked out with a $115 store credit which isn't bad given that most of their items cost between $5-$25.
