Creating and mailing index cards

[Tina Ferrier]

I've read on the usps website and that can mail out a index card. I understand that there are many direct mail services out there but for a newbie like myself, i am trying to find a seriously budget friendly way to start marketing market. 

Has anyone out there tried to print out their own marketing message on blank, yellow, no lined index cards and mailed them out?

i know this will take a lot of work to figure out and set this up like printing out letters do.

a response would be greatly appreciated.

thank you everyone for your guidance and support.