To ease the immigration entry process you can now fill out the Mexico Immigration Form online prior to travel.  Just go to https://www.inm.gob.mx/fmme/publico/en/solicitud.html to complete the online form.  You will need your passport, flight information, address or name of the hotel where you are staying and a printer to print the completed tourist card(s).  Please note that the tourist card must be completed for every person travelling, regardless of age and how long they are staying in Mexico.