ST00P!D M0NK3Y This is exactly what I've been looking for!
One suggestion though. When adding individual files that aren't inside a folder, it will keep the extension in the file name after archiving. For instance, after archiving this app to a .zip archive, the new name is CleanArchiver2.4a2.dmg.zip. If you could allow this app to remove the .dmg file extension (or any other extension for that matter - - like YemuZip does), that would be great.
(Version 2.4a2)