For almost five years, this has been my desktop picture at work more than a few times when I couldn't decide what to use for the month.

Evertide said:

For almost five years, this has been my desktop picture at work more than a few times when I couldn't decide what to use for the month.

Not a bad choice. Darker or pastel desktops are also nice because it is harder for files to get lost in the camouflage of the image.