As one of my planning steps I like to visualize the display. I just open the image of my house in Photoshop and apply a gray scale, then add the elements with the pencil tool or duplicate images and resize them to be some-what proportioned. This also helps for the adjustable preview in vixen. I have a better idea of where to put all those pixels that represent the lights in the show. Here is the first view of what I am planning for the 2012 show. I just hope I remembered all the lights :-D.
Checklist:
9 Reindeer
1 Sleigh
1 Mega Tree w/ 12 channels
2 Christmas trees
100s of feet of white light