Long long ago, I posted a neat drag and drop trick. Here's another. I regularly find myself in a Windows Explorer window, looking at the files it contains, and wanting a command prompt so I can type some command or another. Today it was regsvr32, but it varies. So what I usually do is open a command prompt, Alt-Tab to the explorer window, highlight the path, Ctrl-C, Alt-Tab back to the command prompt, and then leap through all the command prompt nonsense to paste. Bleah.
Here's something quicker. In the command prompt, type "cd ". Then with your mouse click on the symbol before the path in the explorer window:
Drag it into the command prompt and let go. Nice.