When Apple introduced the Aqua look-and-feel with Mac OS X, one of the gratuitous changes was moving the minimize/maximize toggle box from the right side of the window to the left. Whose brilliant idea was this?
Most of the population is right-handed. And even for the left-handed among us, the scrollbar remains on the right. I have to zip the pointer across the screen to minimize the window, and accidentally close it because that UI element is right next to the one I meant to hit.