Exotic OS X installer tips: speed up multiple installs

Download all packages, then open all at once?

Minimizing how often you see "Optimizing System Performance" during software installation

....Simply open more than one installation package file at the same time. The Installer application will queue up the packages and install them in order. This even works with third-party package files that use Installer. After the last package is installed, Installer performs optimization on the computer, but usually just one time.