This video is from a couple of years ago, but is just as relevant today, and shows how much money can be saved by frugal shopping at Goodwill stores. It also shows that you can look just as well dressed for the fraction of the price of a new outfit at a department store.
Here in Australia charity stores like The Salvation Army (Sallies) have recently improved their sales by 8% because of tight financial times, and people of all financial and ethnic backgrounds shop there regularly. It not only benefits the shoppers financially, but all those in great need who rely on donations and help directly from the money raised. e.g. homeless, those out of work.