Need a little Perfect North Slopes on your desktop? Take a break and download a calendar wallpaper.
PC Wallpaper Instructions:
Click on the image size you want, then right-click on the image and choose "Set As Wallpaper"
MAC (OS X) Wallpaper Instructions:
Click on the image size you want, then drag the image on to your desktop. Go to Apple menu > System Preferences > Personal section and select "Desktop". On the "Collection" pulldown menu, go to "Choose Folder" and locate the appropriate wallpaper.