Operating systems are so vast and complex it's virtually impossible to find any one person who knows all the tips and tricks an OS offers. OS X is no exception. Whether you're a new user or a long-time OS X user, Macworld has posted a list of seven tricks you might not be aware of. My favorite is the ability to reorganize menu bar icons by Command-dragging them (which, unfortunately only works for native OS X services and not third-party menu bar icons). For the rest of the tips, check out Macworld's post and let us know how savvy of a user you are -- and any of your favorite OS X tips and tricks -- in the comments below.