Yank is an all-purpose uninstaller for Mac OS X. Yank can create uninstaller files—called Yank Files—to uninstall any software and all its support files, no matter how it was installed.
Throwing a program in the trash doesn’t delete the whole program. Almost every Mac program installs extra files on your hard drive-preference files, mysterious plists, big databases. They waste space and may even degrade your Mac’s perfomance and security.
Don’t trash that program-Yank it! Use Yank when you install a new program on your Mac. Yank monitors the installation process and saves a Yank File recording every change the program made to your hard drive. Later, if you decide to remove the software, just open up the Yank File and click Uninstall. Yank removes all traces of the software and puts your Mac right back where it was.