What can I send on Postcrossing?

Postcrossing is a postcard exchange community, so each exchange that you make must include at least one postcard. It can be a postcard you bought in a store or a handmade postcard, as long as it hasn't been previously used.

If you want, you can also send other things with your postcard (for instance, a letter, photo or pamphlet). However, this isn't required nor expected of you: the only thing you have to send in Postcrossing is a postcard.