... that's not globally insensitive. Not always easy. Today's project is an explosion card. See what I mean.
In the video you will see that the 6x6 DSP didn't work for a full size card but worked great for the notecard size. Just don't fold the notecard on the existing score - make 2 new score lines as per diagram.
Depending how much you decorate the inside, you could write there or if you get a little carried away and put DSP everywhere because you like the DSP so much [ hypothetically :) ], just put a layer of white cardstock on the back and write there.
These cards don't open fully flat, so they also happen to stand perfectly. They will fit in a standard envelope but are a little on the thick side so would need extra postage if you are mailing them.
Are you going to try and make an explosion card? I would love to see what you come up with.
Happy crafting.
Tracey