There is a cool stamp set in the Annual Catalog that may have been overlooked by many of you. I know that I hadn't noticed it until I saw a card made with one of the stamps. The stamp set in question is Watercolor Shapes, found on page 102.
Watercolor Shapes features circles, squares, rectangles and ovals, in varying sizes. They all have that uncertain watercolor-y look, and work quite effectively as a background for any number of uses.
In my card below, I used the large rectangle stamp three times, each time in a different color. To my eyes, it resembles a paint sample strip a bit.