From what I can gather its a bit of both. Some people prefer all the art on the envelope/card. others decorate the envelope and also add a piece of art inside. And yet others stuff the envelope with things like poems,recipes,newspaper articles in addition to the 'art'. My advice to you - do what it is that you like to do!
If you send me your address, i'll send you some mail - or you could send to me and i'll respond!
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