There are many things that OS X does well, and a few things that it could do better. One area of potential weakness is window management, and that's where Flexiglass comes in.
Flexiglass, a US$7.99 (currently 20% off) app from the Mac App Store, adds to and enhances the built-in window management features of OS X. It allows you to quickly resize and move a window using any part of said window when a modifier key is held down (the Option key by default), not just the title bar or the resize corner. With the modifier key, a left click and drag allows you to move the window, while a right click resizes the