Here are some tricks that you can do on Mine Craft Beta: For many doors as the release of a cactus in the sand. Then a door next to where will the two doors.
When you want to have many pictures so you should put up a wall and then turning quickly and up with a new board soon and turn it down.
And one more little thing that many did not know about, you can dye the sheep, by aiming at a sheep when you are in one color and then press the right mouse button.