For the past couple of years, I’ve been using keystroke launchers a lot. Somehow I find it more convenient in launching applications or opening folders as compared to using the Start menu on Windows or the Dock on OS X.
You simply activate it using a hotkey (I use Ctrl-Space), then type what you want to launch or run and the launcher will search all available apps or folders that match the letters you just type. For eg. I type PS for Photoshop or DW for Dreamweaver. It saves me a lot of time specially when I need to do certain things in the littlest amount of time possible.