I have several Power PC apps that will no longer work with OS X 10.9.
How can I remove them from my MAC?
Ask Different is a question and answer site for power users of Apple hardware and software. It only takes a minute to sign up.Sign up to join this community
I've used http://www.freemacsoft.net/appcleaner/ for years and it works a treat at removing all the files associated with an app in addition to the app itself (but you do have the choice about which of those files you remove).
For all the great things about OS X, other OSs definitely have it beat when it comes to uninstalling stuff.