Metro multitasking from desktop + Multimonitor + Mouse

With my current setup, my secondary monitor is on the left of the primary one. When it is not connected, multitasking with metro apps from the desktop it's easy: just move the mouse all the way to one of the left corners, move it down/up and there you are. There isn't any thinking involved; just a <1sec movement. When the monitor on the left is on though, then it is no longer a straightforward task: I actually have to target my mouse rather careful in order to bring up the menu, and avoid jumping instead into the second monitor. Is there an easy way to handle this? Currently, I am using WinKey+Tab most of the time in order to avoid using the mouse.