I think I sorta figured it out - the idea that was trying to happen yesterday.
So here's the story.
In high school, a particular friend and I would pass notes all the time. None of this texting stuff... we got out our fancy pens (usually purple or green ink, sometimes glittery) and wrote letters. Full notebook sheets of... well, that's the question, really.
Because we probably wrote each other hundreds of these in-class letters, folded into increasingly creative shapes. And I keep finding them. I graduated from high school 12 years ago, and I found one of her notes (football-folded) tucked into a folder when I was unpacking the house. They just turn up all the time. And I can hardly understand a word of them any more. I'm sure, to anyone happening to find a dropped one back when, they were complete gibberish - one inside joke after another. But they were cute! We were all about the decorations and doodles.
So I got inspired - if I was already so into "paper art" then, why not try to update that old tradition, and still keep the basics of it?
I folded a notebook-paper sheet into a heart, and made a whole decorated card front with a pocket to put it in.
The heart itself is decorated, too, of course - that's part of the fun!
I have a feeling someone's going to get this in their mailbox sometime soon.