Have I mentioned how attached I've become to my iPad? I didn't think so. It is beginning to dawn on me what a useful tool this is for planning a painting. You can instantly crop a photo to see the best composition for a thumbnail sketch. Flip it to back and white to see the values. The best maybe trying out the color palet, if the colors don't work easy to undo. No waste of printer ink, canvas, paints. Hey, I can take this anywhere, painting in a waiting room... So much fun! Digital art a valuable tool.