elementary has some really cool features to navigate their operating system and you can read about some of them here.
For multi-taskers who keep a lot of applications open at any one time there is “Hot Corners”. Like all elementary functionality this feature is simple to set up and you will definitely benefit from the results
How to improve your workflow using Hot Corners
With Hot Corners activated you can chose to show multiple work-spaces or all the applications you have opened by pointing the mouse to the one of the corners of your screen. This setup is how I use Hot Corners (see image bellow).
Hot Corners which can be switched on and edited from the “Switchboard” System settings > Desktop > Hot Corners.