download it
and it will add many window management features to most Mac applications:

• Keep windows afloat (heh) on top of all others.
• Pin windows to the desktop (new!)
• Move windows from anywhere, not just the title bar.
• Turn a window into an "overlay" on your screen that doesn't hinder your work.
• Show a window's file in the Finder with nothing more than your keyboard.
• Resize windows from anywhere, not just the corner (new!), and more.