I can't explain how excited this post (or more accurately, the following links from it) make me. Looking through the companies that you can get discounts with just by using a particular card and having the right code, I have found at least 5 companies from whom I have made a major purchase in the past 6 months or so. I will definitely be checking these discounts regularly from now on. Some favorites include Blue Nile and Netflix. I can't wait to check them all out. Thanks, Jim!