For reasons explained in my post “Dungeon master’s Screen,” I tend to use a screen. Standard-sized screens stand too tall for my taste, so I prefer the 6-inch-tall mini version of the World’s Greatest Screen from Hammerdog games. This screen is constructed like a loose-leaf binder, with clear-plastic pockets on both sides.
I have created rules inserts for fifth-edition Dungeons & Dragons, which you can download as a PDF file. Put them in the Hammerdog screen, or just put the inserts on cardboard and fabricate your own screen. You’ll need to add your own pictures.
Update: My improved inserts include more panels that you may need. Choose the ones you find most useful.
Update: NewbieDM used my rules inserts as part of his own homebrew DM screen.