Close apps with a flick of the wrist in Windows 8

Click (or tap) and hold the top edge of an app to move it around the desktop, then drag it to the bottom of the screen to close it.

Close apps by dragging your finger down from the top of the screen until the app minimizes and begins to disappear into the bottom edge.

Mouse: Move your mouse to the top of the screen until the cursor morphs into a gnarled hand, then click and drag the app down until it begins to disappear into the bottom edge of the screen.

Keyboard: The classic ALT + F4 key combination still closes any open program; if you use it while no programs are open, it should trigger the Windows power management menu so you can shut down your PC.