What to do with these notecards with envelopes? →[More:]I bought a package of blank notecards with matching envelopes with the idea of using them for thank you notes. It threw me, however, that the notecards are simply flat pieces of paper and don't fold in half (by default anyways). I don't have any more thank-yous to write. Without the envelope, they're a little smaller than a postcard, so not really suitable for long notes. What else should I use them for?