wallpaper is the trendiest way to decorate a computer. If you’re feeling down, a cheerful outdoor scene can give you an instant lift. Alternatively, you can install one of the millions of free images from sites such as Reddit. The world’s largest community for photography, Reddit offers images that are high resolution, perfect for your desktop. Almost any photo can make a good background. To find great high resolution images, search the SFW Image Network, a subreddit network on the SFW Image Network.