https://chromewebstore.google.com/detail/costco-price-adjuster/fladelenhmmmicdplahmeljembbneenp

I build a chrome/firefox extension that scans your Costco purchases and tells you if prices have dropped - allowing you to request the difference refunded!

I also included a cool summary analysis, and way to search through all historical warehouse purchases.

Check it out: https://chromewebstore.google.com/detail/costco-price-adjust...