I'm pretty good at keeping my desktop workspace free of clutter
by using a daily desktop file purge at the end of each day ("trash it or save it into a to-do folder"). But occasionally I'll be working on a House Tour or similar project where tens of icons litter by desktop, making it hard to navigate the clutter. Here's a free application which wipes away tour desktop like a Magic Sponge across a dirty sink...
is a free OS X application offering the option to mask your desktop clutter at the touch of a mouse click. You can either use the standard preinstalled grass wallpaper or designate any desktop wallpaper of your choosing to cover over your mess. Shade
is Retina Display compatible, but unfortunately doesn't yet support multi-monitor setups.