Small Shiny Objects

I have really used Avis in the past due to always finding less expensive rates elsewhere, so I have never signed up for their frequent rental program.

I just started working for a new employer that has Avis as one of their preferred car rental agencies, so it looks like I will be using them a lot.

I just made my first reservation tonight with Avis through American Express' AXIOM website. I would like to start earning points or credits for my Avis rentals, but am not sure the best way to sign up with them.

If there is a better way (referral or special link to a promotion) of signing up than just going to their website then please let me know.

Thanks