Mexican Tourist Card

Flying out of Vancouver on Alaska you can present a copy of your Temporary or Permanent Residency card and they give you an instant refund on your credit card. Doesn't work with Aeromexico. The last two years I sent receipts and all other documents to their Mexico h.q. but was never able to receive a refund. Next time I'm heading to Profeco.
Also, if you buy a return ticket Mexico-Canada or U.S. you don't pay the tourist tax as you are from Mexico and therefore not a tourist.