You probably knew that you could use the Maps app in Mavericks to get directions. And likewise with the Maps app on your iPhone. But you can also figure out a route on your Mac and then send it to your iPhone. After getting Directions, choose File, Share and you should see your iPhone in the list as long as you are logged into the same iCloud account. Then on your iPhone, tap the Directions button at the upper left and you will see the route in the list.
Your Mac comes with 46 apps pre-installed. Gary attempts to describe each one in just over 3 minutes. Watch to discover things you may not have known were already on your Mac. You can find all of these with Spotlight searches, Launchpad or looking in Applications or Applications/Utilities.
There are many ways to quickly get to your most recently-opened files on your Mac. You can use the Apple Menu, the open dialog from within the app, the Dock, and also the Go menu in the Finder.
You can save, rename and move files using the title bar while the file is open and you are working on it. There is no need to use the File menu for the most common file functions. You don't need to close a file to rename or move it.
While Launchpad isn't the first choice for launching apps for many Mac users, it is useful for those that want to organize and arrange their apps into groups of app folders. A well-arranged set of Launchpad screens can make working with apps easier.
Besides helping you find new apps to install, the Mac App Store also has screens that show you your past purchases and lots of information about app updates. On the purchases screen you can re-download apps you have purchased in the past or on another Mac. On the Updates screen you can read detailed information about updates and decide when to install them.
In OS X you have various ways of setting default applications for files and other actions. You can set your default email and web browser applications with settings in Mail and Safari. You can set what happens when you connect a camera or SD card, or insert an optical disc. You can also set which application will be used to open specific file types.
Evernote is a third-party program that allows you to create notes on your Mac or iOS device. These notes will sync across your devices. You can create audio and photo notes as well. There are many ways to use Evernote and anyone with multiple computers or devices should check it out.