"Cinch gives you simple, mouse-driven window management by defining the left, right, and top edges of your screen as 'hot zones'. Drag a window until the mouse cursor enters one of these zones then drop the window to have it cinch into place."

Texty tips and links.

Probably worth the $5 if my experience ineptly faffing about with launchd is anything to go by.

A toolkit for rescuing buggered Macs - boot into SUM at startup to repair permissions, delete cache files, etc. I like the name, too.