Today (March 15) is Customer Appreciation Day at Goodwill. Not only will you save today, you’ll get a 20% off coupon for March 17th! Other than awesome prices on stuff, you also get discounts on one day in your birthday month if you belong to their loyalty club. For most purchases you make, you’ll earn REwards points and when you reach 100 points (1 point for every $1 spent) you’ll receive a $5 Club Goodwill REward credit for use on your next purchase.