Here's an idea,

Resize windows w/ trackpad

To help – resize windows without having to move you mouse to the edge of the window and resize it manually.

Sparked by trippymitch on 10 January 2010. (5 comments)

Open/Close windows with trackpad gestures

To help – Close windows on laptops without having to move the mouse over the controls either on the top left or right of the active window.

Sparked by trippymitch on 10 January 2010. (3 comments)