title: How to delete preferences for Mac application?
body: <p>I'm developing a Mac desktop app using Cocoa and Objective C in XCode. I need to simulate a clean reinstall, but I can't figure out how to completely delete all preferences for the application.</p>
  
  <p>I found the file at /Users/username/Library/Preferences/com.MyApp.plist and deleted it, but the preferences still persist when I reopen the application.</p>
  
  <p>Thanks in advance for your help.</p>