Shelf Reliance (now named Thrive) coupons, as you will soon notice after looking around the internet, are few and far between. As a whole they don’t do a lot of discounting through coupon codes instead they have promotions that run for a limited time. As a result this page is going to be updated with the current sales and promotions but will not have coupon codes very often since they do not offer many.
Thrive does have monthly sales that they announce via email. Most of the time the discounts are pretty minor like up to 10 or 15%. You can save some extra money if you sign up as a consultant though you have to spend several hundred dollars on a business starter pack so it may be a while before you start seeing substantial savings.