A small desk icon tools which can automatically hide all icons and task-bar in your desktop when you don't need them. Iconoid can make your desktop tidy. It is a free software. 

•  Save and Restore Icon positions for each (or every) screen resolution
• Transparent icon backgrounds or use any color
• Select any color for icon text
• Automatically hide icons when you don't need them and show them when you do
• Automatically or manually select the best color for the text background
• Quickly minimize all windows so that you can see your desktop wallpaper
• See the help files (which include screen shots) for even more information.

Download:
Homepage:

 Screenshot: