I figure many people will eventually need this, so here it is! Lion keeps apps open when you log out, and reopens when you log back in. In order to prevent terminal (or other apps) from reopening while making tweaks, I had to change the process slightly. Follow the guide for making a custom default account in 10.5 (http://www.michaelsmac.com/modules.php?name=News&file=article&sid=394) but make a small modification.... 1. Customize your space, logged in as Guest. 2. Once you've modified the guest account as desired, close all apps. 3. Be sure to delete things like browsing history (you were surely looking at that webpage for guidance, and had safari open.) 4. Next, switch users (don't log out) into your admin account. 5. Finally, now open terminal in YOUR account and do the last steps of that guide: Code: $ rm -R "/System/Library/User Template/English.lproj/Library"/ $ cp -R Library/ "/System/Library/User Template/English.lproj/Library"/ This will prevent the guest from having apps re-open upon login.