Juu Background is an app able to find a new background everyday when your computer wakes from sleep or starts up. No technical handling requested, a single click and your Mac has a new wardrobe !
Sources:
NASA APOD (http://apod.nasa.gov/apod)
Bing (https://www.bing.com)
The Paper Wall (http://www.thepaperwall.com/)
DHC (http://dynamichomecinema.fr/)
