OS X :: Can't Resize Window

I managed to make a window slightly bigger than the screen, and now I can't access the 'handle' in the lower right corner to return the window to normal size.

I was using screen sharing from another computer and some strange things were happening, and I ended up with my iTunes window a little bigger than the displayable area on the screen. If I move the window up as high as possible (so that it's up against the menu bar), the bottom edge is just hanging off the bottom of the screen, just far enough that I can't grab the resizing handle.