pinniped

Sure, I think a list of the widely-available CDP's would be helpful (e.g., stuff like Amex, Entertainment, various AAA codes (there are many), Costco, etc.). I for one have found the Marriott thread very useful - I've used codes from that thread to get amazing rates on several occasions - in all cases using codes that I am perfectly entitled to use, but I simply didn't know about.

In practice, I don't expect to hit many home runs with new CDP's at Hertz. But it can't hurt.

The Marriott thread got somewhat polluted with discussion about the ethics of "stealing" employee codes. Perhaps we can avoid going down that path here by NOT posting our corporate codes and sticking to the broader membership/organization codes that people can either use without restriction or (to be perfectly ethical) use after paying a membership fee to AAA, Costco, etc.