Via Artists Network, I discovered this interesting post on Surprising Watercolor Techniques for Achieving Luminosity and Watercolor Texture written by Deena S. Ball.
For this technique, Deena "uses either YUPO or Strathmore Series 500 bristol 4-ply plate surface for her textured paintings. Both have extremely smooth surfaces and are less absorbent than traditional watercolor papers. This allows the paint to flow more freely, resulting in more intense colors."
Why not try this technique this weekend?