Sometimes the simplest things can liven up an environment, so I periodically change the desktop backgrounds in the computer lab. One of our favorites is the "Click or Treat" one that I created in Microsoft Publisher. Basically, I started with a blank publisher file. Setup the page size to be 16 x 9 (wide screen), inserted jack-o-lantern clipart (stretched the entire size of the page) and added the "Click or Treat" text. Then I saved the file as a jpeg. Finally, when October rolls around I locate the picture, right click and select "Save as Desktop Background". Now, sit back and listen to the oohs and aahs.