8.  Repetition Repetition  Repetition Repetition  Repetition Repetition 
    for loop, forever, break statements, while, do loop, recursion.

*) Cool example is build a robot to actually solve tower of hanoi
   (mechanics of building the arm to take the pieces off the tower is
   the hardest part of this!) 

*) any program to keep on doing what it does until a button is pressed.

*) Scrolling text.

*) Some sort of RoboTag which tries to find other robots, until