Multi-million dollar idea in this thread...
 

Christmas lights... It doesn't matter how major your display is, they have lost their shock value these days. However, the guy who set his lights to music is the envy of every Clark Griswold out there.

Someone needs to market a setup similar to that in a box. Doesn't have to include the radio broadcast, just a nice display that jumps around the house and yard.

Of course, one problem is that not everyones home is the same. So there would have to be a very basic starter kit that was expandable, and the main box detected what expantion sets were on and incorporates them accordingly.

... or maybe you hook the control box up to your computer and enter in the general location of your lights and it takes care of the rest.

Oh, and you owe me big time if you do this.

As long as we have ours to light our Christmas tree then that's good enough.. :)