Did you know that the area of fixed icons along the bottom of all your iPad screens is called the Dock?
Here is an illustration of where it is.
However did you know you can now have up to 6 icons in the iPad dock? So it can look like this...
This is how you do it...
1. Tap and hold any icon (they will begin to wobble)
2. Tap and drag any wobbling icon down to the dock at the bottom and position the order you prefer
3. Press the Home button (the icons will stop wobbling)
Tip: You can even drag a folder icon to the dock (see the Social folder in the example above)