But still not as fast as if you using keyboard 'Shortcut Key' - Windows key + D;
Try to open 4 or 5 windows and do the 'Shortcut Key' above mentioned.
Walla! Pix below shows before & after 'Shortcut Key' process.
Before:

After:

Try it yourself.. you'll enjoyed it!
* Good for hidden your negative activity from mummy & daddy! hehehe...