I was a loyal Superstore customer for 15 years (prices were good, quality was good, selection was good) until this year when I was on my account and saw a link that showed me how much I had saved from my PC membership, which promised discounts on PC brand stuff which I bought frequently, but most notably 20% off diapers/baby products. Surely having a a small child and baby on the way I would recoup the $99 annual fee in just a few boxes of diapers! $68 in six years. I had never seen any notion of such a report before, it was the first time I ever checked. I assumed the discount was given in PC points or something, but no, I was just grifted out of $550. It was the last straw and I wish I had bought my Costco membership a decade ago.