Here is the tutorial for you, since I just didn't have time to do everything this morning.
Alright, first things first. You need to have a full sheet of 8.5 X 11 CS, a scoring blade (I am using Fiskars), and a corner rounder. You will also want some sticky strip or other strong adhesive to hold it all together.
You also need stamps, pieces of CS, and something to hold the flap closed. I used hodgepodge for mine, but you can also tie it shut with ribbon, if that is what you prefer. I also used the cutter kit to distress some cs and the mat pack, to do some paper piercing.
You can also score it at 7 1/4, and 7 and 3/4, turn the CS around, and the score the same measurements again on the opposite side.
Now, where the score lines overlap, you need to cut them out. Your final CS will look like this. Where the black asterisks are, you need to use the corner rounder. Where I have placed the blue asterisks, you can still use the corner rounder, but you need to take the guide off (I show how to do that HERE). You use the punch upside down at this point and watch from the back to line up your corner.
You add sticky strip to the bottom panel (this is the larger one) and folding the two outside ones in, you stick it all together. Mine held 5 cards, but they were fairly well-endowed (hehehe). With less layers and embellies, I'm sure you could fit about 10.
I used the wheel again, this time in black, on white CS, and then used the Bud Basics set, to stamp the images with my colors. I used the end of a pencil and the barely banana ink to color the centers of the flowers. My image panel with 1 1/4 X 6 and then added on the eggplant for contrast. I also pierced this piece and distressed it with my cutter kit before gluing it onto the flap.
So, you could see this in your mailbox, if you play along with my color concoction! Go HERE to get the colors, and more deets. Have fun and happy stamping!!