For years I had been working on a 12 x 16 glass palette. It fit nicely in my work area and I had an old cookie sheet that I inverted over the wet paint to retard drying. Then I discovered a large piece of glass packed in with some old sketches and decided - why not? It's 18 x 28 (probably came from an old watercolor). I cut a piece of medium gray mat board to size and taped the glass and mat together with painter's tape. I could not believe the difference this made. I was so afraid it was too large and I would hate it - but quite the opposite.
