That's great. I usually wade through Retail Me Not on my own, but it's time consuming to go back and forth to see what's available from different stores (and they try and hide the actual code). I'll give it a try next time.
They hide the actual code until you click on their link so they can get the affiliate traffic (otherwise people would just copy the code, and leave, resulting in no revenue for them).
Retailmenot was part of the inspiration for the site - I always found pizza coupons on their site to not be very accurate.