Thanks to Martha Stewart, I have another Idea. Full credit to Martha and Kodak of course.....
Take a piece of scrapbooking paper, or wrapping paper, and cut it to 7 1/2" by 7 1/2".
Place, or glue, a picture of you and your valentine in the center, turned diagonally, so that the four corners of the paper points are pointed out like a star.
Don't worry about putting the picture in the exact center, imperfection is what makes this card unique.
I purposely made the paper slightly bigger, so that the picture corners do not touch the edge, this overlap will conceal the picture when you fold in all of the corners to the center.
Fold in the corners, creasing along the edge of the picture.
After you fold in the corners, seal the flaps with a sticker, or, if you really wanted to go fancy, melt red wax on it and stamp it with a wooden block stamp.