Let's face it -- as much as we love our Macs, sometimes you've got to use a PC, whether that be for work or at a friend's house, or just for playing some games. But when you absolutely must use Windows, maComfort can make the transition easier. It's a free Windows application (with some premium options) that brings all of the nice software things you appreciate on your Mac back to your PC. It's got a QuickLook-style feature, translates the Windows key to all of your Command hotkeys, and even replicates familiar Mac features like one-button volume control and Spaces and Active Corners. And the app also has a add-on system, so you can download extra features like homemade Docks and shadows just like on your Mac back home.
Of course, it's not perfect -- QuickLook only works in Explorer, not everywhere, and obviously all of the less-superficial features on the Mac (like Terminal and Stacks) will stay in OS X. But if you have to use a PC away from home and are frustrated that hitting what's supposed to be the Command key keeps popping up the Start menu instead, try a little maComfort. The app is a free download with limited functionality, or $20 for full use.