Dexpot - If you don't have Dexpot yet, the new update makes it a must-have tool for Windows, adding a ton of features to your desktop that you never knew you wanted.
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
Mission Control - Mission Control, formerly Exposé, is a feature of the OS X operating system.
Mizage Divvy - Divvy is an entirely new way of managing your workspace.
VirtuaWin - VirtuaWin is a virtual desktop manager for the Windows operating system (Win9x/ME/NT/Win2K/XP/Win2003/Vista/Win7/Win10). A virtual desktop manager lets you organize applications over several virtual desktops (also called 'workspaces').
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.