USPS (United States Postal Service) postage stamp postcards are now available in my online store! These are call “Maxi Cards” on postcrossing when sent with the matching stamp. Some of the postcards already have the pre-paid stamp printed on the back (you will still have to add additional postage to bring it up to the current postcard rate).
I will be adding more in the next month. Would you be interested in purchasing the matching stamp also? Let me know and I will put some sets together.