You can also take advantage of the palette tabs and the 'docking bay'. By grabbing a palette aspect by the top tab (the handle) you can drag it from one palette to another. I just load my layers palette with the things I use most - alpha, navigator etc - and close down all the other palettes. That way there's only one on screen plus the floating toolbar. The dark grey rectngle at the top right of the screen is the docking bay. You can drag palettes into it so they're always handy but not floating around the screen. That's where I keep the history palette for my uh-oh moments. Saves buying a second monitor.