I saw this Tri Shutter card tutorial on Splitcoaststampers...It was designed by Kim Score. I just used the Festive Flurry set and matching dies for a focal point on the front of the free-standing card. The Winter Frost DSP again provides the color scheme and background prints. I made this card shorter (in the vertical direction as shown here) so that the card would fit into a regular 4-1/2" X 5-1/2" envelope when flattened. So this card is 5-1/2" x 8". You still score it the same way: On the long side, score at 2", 3", 5" and 6". On the short side, score at 1" and 5".