It's a great way to reduce clutter and keep like programs together. Rocks not only because it's absolutely gratis for personal use, but also because it's packed with UI hints to remind you about your virtual desktops, and it's extremely customizable. Take some time to get acclimated to virtual desktops—they're a bit of a learned behavior—and you'll never be able to go back to the stock, solitary Windows desktop again. And good news! Windows 10 will include native virtual desktop support. Photoshop and —the open-source Photoshop alternative—may be filled with bells and whistles, but all those tools just add to the software's complexity.