You already knew that PopSugar's Retail Therapy is addictively good. Now, it's even better — and all for charity. In honor of Fashion's Night Out, the game is offering a limited-edition official Fashion's Night Out collection. Each piece is available via Facebook credit, starting at 10 FB credits ($1). But besides the fashionable gear you'll score, 100 percent of the proceeds will go to FNO's official charity, the NYC AIDS Fund. Items are on sale until Sept. 20 — be sure to shop and show your support!