I used the sketch over at CASE(E) this Sketch! for this card. I stamped the background and used a rectangle stitched die to create the background. I really wanted to use the string of lights but wasn't sure how. So I chose to use it on the front and put my sentiment on the inside.
Here is what I came up with
Supplies: retro ornaments stamp set and dies-Avery Elle, ink-The Stamps of Life, cardstock-Stampin' Up!