...So, do you ever get the feeling that your system is being flooded with a bunch of junk files that you can't get rid of? I know I do. Well, I'm going to show you a few ways to get rid of most, if not all, of those annoying junk files.
TinkerTool is an application that gives you access to additional preference settings Apple has built into Mac OS X. This allows to activate hidden features in the operating system and in some of the applications delivered with the system.
portable usb-stick version also available. From lifehacker.com: "...Revo Uninstaller makes removing programs from your computer—not just uninstalling, but removing all traces—a quick and painless process. ...the default Add/Remove is notoriously slow at loading all of your installed apps; it also ...doesn't necessarily eradicate the program to your liking."