True Launch Bar (TLB for short) is a Quick Launch Bar enhancing software, which is specially developed to extend or even replace the traditional quick-launch toolbar of Windows. But you should be clear that, it is not a taskbar beautifier, instead, it is to take over the area of quick launch toolbar on taskbar. In other words, the scope it works is just the toolbar.
GMDesk is a very useful desktop client for Google applications, based on Adobe AIR (so compatible with Windows, Linux and Mac). With GMDesk, you can easily and directly access the Gmail, Google Calendar, Google Docs, Google Maps and a series of commonly-used Google services without the need of opening a web browser.
Mouse gestures became popular starting from the web browser, as one of important ways to improve browser's working efficiency. It can really save lots of trouble or repeated mouse, keyboard operations. In a similar way, if using mouse gestures for desktop environments, that will avoid more repetitive operations. Such as you need to enter into a deep folder frequently.
RK Launcher is a Mac OS X style dock simulation application, similar to Y'Z Dock, ObjectDock and RocketDock, namely fast call programs from computer (faster and easier than Windows shortcut), and have the function of replacing programs' appearance. After trying, RK Launcher is the best dock style emulator freeware, i think.