In the 1yr we've been using SAH for our online purchases, my family & I have saved between $100-$150, in the form of checks sent quarterly based on purchases made the prior 90 days. It's the simplest thing in the world: sign up, visit SAH before making an online purchase, click through their link and you will earn a certain percentage (0.5% - 12%+) of your total pre-tax purchase price.