Today I discovered that you can resize windows in Mac OS X Lion with the aid of the Option and Shift key, a technique usually reserved for image editing software.
- Hold down the Option key while resizing the edge of a window to move the opposite edge the same distance.
- Hold down the Shift key while resizing a window to maintain the current aspect ratio.
This functionality was added in Lion, though I’m not sure if it’s been there from the start. I am using Mac OS X Lion 10.7.2.