I hope that people who see my computer notice my background. It’s a live map of the earth. It is made by combining a day image and a night image according to the time of day and time of year, then overlaying a cloud image that is reconstructed from fresh satellite data every three hours. That much is provided automatically by Xplanet.
I just added another component to this. The daytime image will now be changed depending on the month, corresponding to NASA’s Blue Marble monthly maps. This means my desktop now shows the correct amount of ice and vegetation for the season.