I was in the Big Apple earlier this summer and while there, visited the Student's Art League. They have a great facility and and wonderful gallery, open to the public, where they display their pieces for sale. I don't remember the name of the store next door, but rightly enough, it was an art supply store. While checking it out, I found these little 3x5" Winsor-Newton panels. I have never seen this size before and thought it would be fun to try a few. It was also the perfect purchase size as I didn't have much room in my roll-aboard suitcase.